Merge pull request #207 from tf/files-dropdown-fixes

Improve Dropdown Menu in Files View
Merge pull request #208 from tf/file-thumbnail-blink

Ensure Pictograms of new File Stages also Blink
further fixes for subsharing
Merge pull request #206 from tf/optimize-sharing

Optimize Sharing
Merge pull request #209 from tf/emph-chapter-fix

Read emphasize_chapter_beginning from Entry Configuration
Merge pull request #210 from tf/inline-help-wording

Some Wording Changes for Inline Help
Merge pull request #201 from tf/travis-js

Enable xvfb for Specs on Travis
Automatically Return to Previous Tab on File Selection

Pass tab name to inputs on configuration editor tabs, so file input
view can pass it as default `returnToTab` option to file selection
handler.
Rework Image Positioning Dialog
Merge pull request #211 from tf/auto-return-to-tab

Automatically Return to Previous Tab on File Selection
Merge pull request #212 from tf/new-background-positioning

Rework Image Positioning Dialog
Update changelog
Update CHANGELOG.md

Add release dates.
Update CHANGELOG.md

Fix year of release dates
Ensure page property is set on Configuration
Merge branch 'config-page-fix' into edge-wdr-5