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diff --git a/Libraries external/VFR Pdf Reader/Sources/ThumbsViewController.m b/Libraries external/VFR Pdf Reader/Sources/ThumbsViewController.m
deleted file mode 100755
index 28a6010fe..000000000
--- a/Libraries external/VFR Pdf Reader/Sources/ThumbsViewController.m
+++ /dev/null
@@ -1,518 +0,0 @@
-//
-//	ThumbsViewController.m
-//	Reader v2.8.6
-//
-//	Created by Julius Oklamcak on 2011-09-01.
-//	Copyright © 2011-2015 Julius Oklamcak. All rights reserved.
-//
-//	Permission is hereby granted, free of charge, to any person obtaining a copy
-//	of this software and associated documentation files (the "Software"), to deal
-//	in the Software without restriction, including without limitation the rights to
-//	use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-//	of the Software, and to permit persons to whom the Software is furnished to
-//	do so, subject to the following conditions:
-//
-//	The above copyright notice and this permission notice shall be included in all
-//	copies or substantial portions of the Software.
-//
-//	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-//	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-//	WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-//	CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-//
-
-#import "ReaderConstants.h"
-#import "ThumbsViewController.h"
-#import "ReaderThumbRequest.h"
-#import "ReaderThumbCache.h"
-#import "ReaderDocument.h"
-
-#import <QuartzCore/QuartzCore.h>
-
-@interface ThumbsViewController () <ThumbsMainToolbarDelegate, ReaderThumbsViewDelegate>
-
-@end
-
-@implementation ThumbsViewController
-{
-	ReaderDocument *document;
-
-	ThumbsMainToolbar *mainToolbar;
-
-	ReaderThumbsView *theThumbsView;
-
-	NSMutableArray *bookmarked;
-
-	CGPoint thumbsOffset;
-	CGPoint markedOffset;
-
-	BOOL updateBookmarked;
-	BOOL showBookmarked;
-}
-
-#pragma mark - Constants
-
-#define STATUS_HEIGHT 20.0f
-
-#define TOOLBAR_HEIGHT 44.0f
-
-#define PAGE_THUMB_SMALL 160
-#define PAGE_THUMB_LARGE 256
-
-#pragma mark - Properties
-
-@synthesize delegate;
-
-#pragma mark - UIViewController methods
-
-- (instancetype)initWithReaderDocument:(ReaderDocument *)object
-{
-	if ((self = [super initWithNibName:nil bundle:nil])) // Initialize superclass
-	{
-		if ((object != nil) && ([object isKindOfClass:[ReaderDocument class]])) // Valid object
-		{
-			updateBookmarked = YES; bookmarked = [NSMutableArray new]; // Bookmarked pages
-
-			document = object; // Retain the ReaderDocument object for our use
-		}
-		else // Invalid ReaderDocument object
-		{
-			self = nil;
-		}
-	}
-
-	return self;
-}
-
-- (void)viewDidLoad
-{
-	[super viewDidLoad];
-
-	assert(delegate != nil); assert(document != nil);
-
-	self.view.backgroundColor = [UIColor grayColor]; // Neutral gray
-
-	CGRect scrollViewRect = self.view.bounds; UIView *fakeStatusBar = nil;
-
-	if ([self respondsToSelector:@selector(edgesForExtendedLayout)]) // iOS 7+
-	{
-		if ([self prefersStatusBarHidden] == NO) // Visible status bar
-		{
-			CGRect statusBarRect = self.view.bounds; // Status bar frame
-			statusBarRect.size.height = STATUS_HEIGHT; // Default status height
-			fakeStatusBar = [[UIView alloc] initWithFrame:statusBarRect]; // UIView
-			fakeStatusBar.autoresizingMask = UIViewAutoresizingFlexibleWidth;
-			fakeStatusBar.backgroundColor = [UIColor blackColor];
-			fakeStatusBar.contentMode = UIViewContentModeRedraw;
-			fakeStatusBar.userInteractionEnabled = NO;
-
-			scrollViewRect.origin.y += STATUS_HEIGHT; scrollViewRect.size.height -= STATUS_HEIGHT;
-		}
-	}
-
-	NSString *toolbarTitle = [document.fileName stringByDeletingPathExtension];
-
-	CGRect toolbarRect = scrollViewRect; // Toolbar frame
-	toolbarRect.size.height = TOOLBAR_HEIGHT; // Default toolbar height
-	mainToolbar = [[ThumbsMainToolbar alloc] initWithFrame:toolbarRect title:toolbarTitle]; // ThumbsMainToolbar
-	mainToolbar.delegate = self; // ThumbsMainToolbarDelegate
-	[self.view addSubview:mainToolbar];
-
-	if (fakeStatusBar != nil) [self.view addSubview:fakeStatusBar]; // Add status bar background view
-
-	UIEdgeInsets scrollViewInsets = UIEdgeInsetsZero; // Scroll view toolbar insets
-
-	if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) // iPad
-	{
-		scrollViewRect.origin.y += TOOLBAR_HEIGHT; scrollViewRect.size.height -= TOOLBAR_HEIGHT;
-	}
-	else // Set UIScrollView insets for non-UIUserInterfaceIdiomPad case
-	{
-		scrollViewInsets.top = TOOLBAR_HEIGHT;
-	}
-
-	theThumbsView = [[ReaderThumbsView alloc] initWithFrame:scrollViewRect]; // ReaderThumbsView
-	theThumbsView.contentInset = scrollViewInsets; theThumbsView.scrollIndicatorInsets = scrollViewInsets;
-	theThumbsView.delegate = self; // ReaderThumbsViewDelegate
-	[self.view insertSubview:theThumbsView belowSubview:mainToolbar];
-
-	if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPhone)
-	{
-		CGRect viewRect = self.view.bounds; CGSize viewSize = viewRect.size; // View size
-
-		CGFloat min = ((viewSize.width < viewSize.height) ? viewSize.width : viewSize.height);
-
-		CGFloat thumbSize = ((min > 320.0f) ? floorf(min / 3.0f) : PAGE_THUMB_SMALL);
-
-		[theThumbsView setThumbSize:CGSizeMake(thumbSize, thumbSize)];
-	}
-	else // Set thumb size for large (iPad) devices
-	{
-		[theThumbsView setThumbSize:CGSizeMake(PAGE_THUMB_LARGE, PAGE_THUMB_LARGE)];
-	}
-}
-
-- (void)viewWillAppear:(BOOL)animated
-{
-	[super viewWillAppear:animated];
-
-	[theThumbsView reloadThumbsCenterOnIndex:([document.pageNumber integerValue] - 1)]; // Page
-}
-
-- (void)viewDidAppear:(BOOL)animated
-{
-	[super viewDidAppear:animated];
-}
-
-- (void)viewWillDisappear:(BOOL)animated
-{
-	[super viewWillDisappear:animated];
-}
-
-- (void)viewDidDisappear:(BOOL)animated
-{
-	[super viewDidDisappear:animated];
-}
-
-- (void)viewDidUnload
-{
-#ifdef DEBUG
-	NSLog(@"%s", __FUNCTION__);
-#endif
-
-	mainToolbar = nil; theThumbsView = nil;
-
-	[super viewDidUnload];
-}
-
-- (BOOL)prefersStatusBarHidden
-{
-	return YES;
-}
-
-- (UIStatusBarStyle)preferredStatusBarStyle
-{
-	return UIStatusBarStyleLightContent;
-}
-
-- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
-{
-	return YES;
-}
-
-/*
-- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
-{
-}
-
-- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation duration:(NSTimeInterval)duration
-{
-}
-
-- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
-{
-	//if (fromInterfaceOrientation == self.interfaceOrientation) return;
-}
-*/
-
-- (void)didReceiveMemoryWarning
-{
-#ifdef DEBUG
-	NSLog(@"%s", __FUNCTION__);
-#endif
-
-	[super didReceiveMemoryWarning];
-}
-
-#pragma mark - ThumbsMainToolbarDelegate methods
-
-- (void)tappedInToolbar:(ThumbsMainToolbar *)toolbar showControl:(UISegmentedControl *)control
-{
-	switch (control.selectedSegmentIndex)
-	{
-		case 0: // Show all page thumbs
-		{
-			showBookmarked = NO; // Show all thumbs
-
-			markedOffset = [theThumbsView insetContentOffset];
-
-			[theThumbsView reloadThumbsContentOffset:thumbsOffset];
-
-			break; // We're done
-		}
-
-		case 1: // Show bookmarked thumbs
-		{
-			showBookmarked = YES; // Only bookmarked
-
-			thumbsOffset = [theThumbsView insetContentOffset];
-
-			if (updateBookmarked == YES) // Update bookmarked list
-			{
-				[bookmarked removeAllObjects]; // Empty the list first
-
-				[document.bookmarks enumerateIndexesUsingBlock: // Enumerate
-					^(NSUInteger page, BOOL *stop)
-					{
-						[bookmarked addObject:[NSNumber numberWithInteger:page]];
-					}
-				];
-
-				markedOffset = CGPointZero; updateBookmarked = NO; // Reset
-			}
-
-			[theThumbsView reloadThumbsContentOffset:markedOffset];
-
-			break; // We're done
-		}
-	}
-}
-
-- (void)tappedInToolbar:(ThumbsMainToolbar *)toolbar doneButton:(UIButton *)button
-{
-    [[UIApplication sharedApplication] setStatusBarHidden:NO];
-    
-	[delegate dismissThumbsViewController:self]; // Dismiss thumbs display
-}
-
-#pragma mark - UIThumbsViewDelegate methods
-
-- (NSUInteger)numberOfThumbsInThumbsView:(ReaderThumbsView *)thumbsView
-{
-	return (showBookmarked ? bookmarked.count : [document.pageCount integerValue]);
-}
-
-- (id)thumbsView:(ReaderThumbsView *)thumbsView thumbCellWithFrame:(CGRect)frame
-{
-	return [[ThumbsPageThumb alloc] initWithFrame:frame];
-}
-
-- (void)thumbsView:(ReaderThumbsView *)thumbsView updateThumbCell:(ThumbsPageThumb *)thumbCell forIndex:(NSInteger)index
-{
-	CGSize size = [thumbCell maximumContentSize]; // Get the cell's maximum content size
-
-	NSInteger page = (showBookmarked ? [[bookmarked objectAtIndex:index] integerValue] : (index + 1));
-
-	[thumbCell showText:[[NSString alloc] initWithFormat:@"%i", (int)page]]; // Page number place holder
-
-	[thumbCell showBookmark:[document.bookmarks containsIndex:page]]; // Show bookmarked status
-
-	NSURL *fileURL = document.fileURL; NSString *guid = document.guid; NSString *phrase = document.password; // Document info
-
-	ReaderThumbRequest *thumbRequest = [ReaderThumbRequest newForView:thumbCell fileURL:fileURL password:phrase guid:guid page:page size:size];
-
-	UIImage *image = [[ReaderThumbCache sharedInstance] thumbRequest:thumbRequest priority:YES]; // Request the thumbnail
-
-	if ([image isKindOfClass:[UIImage class]]) [thumbCell showImage:image]; // Show image from cache
-}
-
-- (void)thumbsView:(ReaderThumbsView *)thumbsView refreshThumbCell:(ThumbsPageThumb *)thumbCell forIndex:(NSInteger)index
-{
-	NSInteger page = (showBookmarked ? [[bookmarked objectAtIndex:index] integerValue] : (index + 1));
-
-	[thumbCell showBookmark:[document.bookmarks containsIndex:page]]; // Show bookmarked status
-}
-
-- (void)thumbsView:(ReaderThumbsView *)thumbsView didSelectThumbWithIndex:(NSInteger)index
-{
-    [[UIApplication sharedApplication] setStatusBarHidden:NO];
-    
-	NSInteger page = (showBookmarked ? [[bookmarked objectAtIndex:index] integerValue] : (index + 1));
-
-	[delegate thumbsViewController:self gotoPage:page]; // Show the selected page
-
-	[delegate dismissThumbsViewController:self]; // Dismiss thumbs display
-}
-
-- (void)thumbsView:(ReaderThumbsView *)thumbsView didPressThumbWithIndex:(NSInteger)index
-{
-	NSInteger page = (showBookmarked ? [[bookmarked objectAtIndex:index] integerValue] : (index + 1));
-
-	if ([document.bookmarks containsIndex:page]) [document.bookmarks removeIndex:page]; else [document.bookmarks addIndex:page];
-
-	updateBookmarked = YES; [thumbsView refreshThumbWithIndex:index]; // Refresh page thumb
-}
-
-@end
-
-#pragma mark -
-
-//
-//	ThumbsPageThumb class implementation
-//
-
-@implementation ThumbsPageThumb
-{
-	UIView *backView;
-
-	UIView *tintView;
-
-	UILabel *textLabel;
-
-	UIImageView *bookMark;
-
-	CGSize maximumSize;
-
-	CGRect defaultRect;
-}
-
-#pragma mark - Constants
-
-#define CONTENT_INSET 8.0f
-
-#pragma mark - ThumbsPageThumb instance methods
-
-- (CGRect)markRectInImageView
-{
-	CGRect iconRect = bookMark.frame; iconRect.origin.y = (-2.0f);
-
-	iconRect.origin.x = (imageView.bounds.size.width - bookMark.image.size.width - 8.0f);
-
-	return iconRect; // Frame position rect inside of image view
-}
-
-- (instancetype)initWithFrame:(CGRect)frame
-{
-	if ((self = [super initWithFrame:frame]))
-	{
-		imageView.contentMode = UIViewContentModeCenter;
-
-		defaultRect = CGRectInset(self.bounds, CONTENT_INSET, CONTENT_INSET);
-
-		maximumSize = defaultRect.size; // Maximum thumb content size
-
-		CGFloat newWidth = ((defaultRect.size.width / 4.0f) * 3.0f);
-
-		CGFloat offsetX = ((defaultRect.size.width - newWidth) * 0.5f);
-
-		defaultRect.size.width = newWidth; defaultRect.origin.x += offsetX;
-
-		imageView.frame = defaultRect; // Update the image view frame
-
-		CGFloat fontSize = (([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) ? 19.0f : 16.0f);
-
-		textLabel = [[UILabel alloc] initWithFrame:defaultRect];
-
-		textLabel.autoresizesSubviews = NO;
-		textLabel.userInteractionEnabled = NO;
-		textLabel.contentMode = UIViewContentModeRedraw;
-		textLabel.autoresizingMask = UIViewAutoresizingNone;
-		textLabel.textAlignment = NSTextAlignmentCenter;
-		textLabel.font = [UIFont systemFontOfSize:fontSize];
-		textLabel.textColor = [UIColor colorWithWhite:0.24f alpha:1.0f];
-		textLabel.backgroundColor = [UIColor whiteColor];
-
-		[self insertSubview:textLabel belowSubview:imageView];
-
-		backView = [[UIView alloc] initWithFrame:defaultRect];
-
-		backView.autoresizesSubviews = NO;
-		backView.userInteractionEnabled = NO;
-		backView.contentMode = UIViewContentModeRedraw;
-		backView.autoresizingMask = UIViewAutoresizingNone;
-		backView.backgroundColor = [UIColor whiteColor];
-
-#if (READER_SHOW_SHADOWS == TRUE) // Option
-
-		backView.layer.shadowOffset = CGSizeMake(0.0f, 1.0f);
-		backView.layer.shadowRadius = 3.0f; backView.layer.shadowOpacity = 1.0f;
-		backView.layer.shadowPath = [UIBezierPath bezierPathWithRect:backView.bounds].CGPath;
-
-#endif // end of READER_SHOW_SHADOWS Option
-
-		[self insertSubview:backView belowSubview:textLabel];
-
-		tintView = [[UIView alloc] initWithFrame:imageView.bounds];
-
-		tintView.hidden = YES;
-		tintView.autoresizesSubviews = NO;
-		tintView.userInteractionEnabled = NO;
-		tintView.contentMode = UIViewContentModeRedraw;
-		tintView.autoresizingMask = UIViewAutoresizingNone;
-		tintView.backgroundColor = [UIColor colorWithWhite:0.0f alpha:0.25f];
-
-		[imageView addSubview:tintView];
-
-		UIImage *image = [UIImage imageNamed:@"Reader-Mark-Y"];
-
-		bookMark = [[UIImageView alloc] initWithImage:image];
-
-		bookMark.hidden = YES;
-		bookMark.autoresizesSubviews = NO;
-		bookMark.userInteractionEnabled = NO;
-		bookMark.contentMode = UIViewContentModeCenter;
-		bookMark.autoresizingMask = UIViewAutoresizingNone;
-		bookMark.frame = [self markRectInImageView];
-
-		[imageView addSubview:bookMark];
-	}
-
-	return self;
-}
-
-- (CGSize)maximumContentSize
-{
-	return maximumSize;
-}
-
-- (void)showImage:(UIImage *)image
-{
-	NSInteger x = (self.bounds.size.width * 0.5f);
-	NSInteger y = (self.bounds.size.height * 0.5f);
-
-	CGPoint location = CGPointMake(x, y); // Center point
-
-	CGRect viewRect = CGRectZero; viewRect.size = image.size;
-
-	textLabel.bounds = viewRect; textLabel.center = location; // Position
-
-	imageView.bounds = viewRect; imageView.center = location; imageView.image = image;
-
-	bookMark.frame = [self markRectInImageView]; // Position bookmark image
-
-	tintView.frame = imageView.bounds; backView.bounds = viewRect; backView.center = location;
-
-#if (READER_SHOW_SHADOWS == TRUE) // Option
-
-	backView.layer.shadowPath = [UIBezierPath bezierPathWithRect:backView.bounds].CGPath;
-
-#endif // end of READER_SHOW_SHADOWS Option
-}
-
-- (void)reuse
-{
-	[super reuse]; // Reuse thumb view
-
-	textLabel.text = nil; textLabel.frame = defaultRect;
-
-	imageView.image = nil; imageView.frame = defaultRect;
-
-	bookMark.hidden = YES; bookMark.frame = [self markRectInImageView];
-
-	tintView.hidden = YES; tintView.frame = imageView.bounds; backView.frame = defaultRect;
-
-#if (READER_SHOW_SHADOWS == TRUE) // Option
-
-	backView.layer.shadowPath = [UIBezierPath bezierPathWithRect:backView.bounds].CGPath;
-
-#endif // end of READER_SHOW_SHADOWS Option
-}
-
-- (void)showBookmark:(BOOL)show
-{
-	bookMark.hidden = (show ? NO : YES);
-}
-
-- (void)showTouched:(BOOL)touched
-{
-	tintView.hidden = (touched ? NO : YES);
-}
-
-- (void)showText:(NSString *)text
-{
-	textLabel.text = text;
-}
-
-@end