Merge branch 'network-assets' into 'master'

Replace raphael-rails with raphael.js and split it from the rest of the JS

## What does this MR do?

Removes raphael.js and its related libraries from the default JS bundle.

It also removes raphael-rails because the gem is unmaintained and – for whatever reason – didn't want to cooperate with the way I was trying to require it.

This brings the default (compressed and minified) application.js from 354KB after the d3 MR (!4394) down to 324KB.

## Are there points in the code the reviewer needs to double check?

That tests pass and that there aren't errors on any pages (especially the Network page).

## Why was this MR needed?

It's only used on the Network page and was using way too much bandwidth for just one page.

## What are the relevant issue numbers?

#14372 #13165 

Follow-up to !4394 and !4516.

cc: @jschatz1 

See merge request !4519

1 files changed, 2 insertions, 10 deletions

diff --git a/app/views/projects/network/show.html.haml b/app/views/projects/network/show.html.haml
index bf9baaea889..e4ab064eda8 100644
--- a/app/views/projects/network/show.html.haml
+++ b/app/views/projects/network/show.html.haml
@@ -1,4 +1,5 @@
 - page_title "Network", @ref
+- page_specific_javascripts asset_path("network/application.js")
 = render "projects/commits/head"
 = render "head"
 %div{ class: (container_class) }
@@ -14,14 +15,5 @@
               = check_box_tag :filter_ref, 1, @options[:filter_ref]
               %span Begin with the selected commit
 
-    .network-graph
+    .network-graph{ data: { url: '#{escape_javascript(@url)}', commit_url: '#{escape_javascript(@commit_url)}', ref: '#{escape_javascript(@ref)}', commit_id: '#{escape_javascript(@commit.id)}' } }
       = spinner nil, true
-
-:javascript
-  network_graph = new Network({
-    url: "#{escape_javascript(@url)}",
-    commit_url: "#{escape_javascript(@commit_url)}",
-    ref: "#{escape_javascript(@ref)}",
-    commit_id: '#{@commit.id}'
-  })
-  new ShortcutsNetwork(network_graph.branch_graph)