* incomplete conversion
* get ajax helper migration to work
* delete old periods.spec.js
* remove global-ajax-queue.js file
* migrate piwik service and test (w/ hacks to get it the test to work)
* rebuild and remove old files + get tests to pass
* unfinished commit
* return jqxhr object so promise api can be used
* move hasBlockedContent and deprecate piwikApi service
* remove alert files
* convert piwikHelper.spec.js
* in new vue code, use "Matomo" everywhere possible instead of "piwik" and rebuild vue files
* add another needed export line in command
* include polyfills after vue so we can add to vue engine
* Add HTML sanitizer for use w/ migrating ng-bind-html uses.
* fix broken merge, rebuild js, fix issue in build command
* add sanitize to other components for consistency (will be replaced by utility function eventually)
* add output when no plugins to build
* update expected screenshot
