More release note updates
Revert to putting the version number in the corner ribbon

Based on two bits of feedback:

1. The version number should be displayed prominently on the page
2. Ordinary users don’t know what “Find me on GitHub” means
Release note updates
Move editor type mappings into a single file
Fix content type typo
Fix problem with edit widget not refreshing

One symptom of this problem was that changing the type field of a
tiddler didn’t immediately switch to the bitmap editor
Add message for empty plugin lists
Merge remote-tracking branch 'upstream/master' into fr-FR
fr-FR translation for Unsaved Changes Warning
fr-FR translation of the Readme file for the core plugin
Make it possible to disable plugins
Release note update
Merge pull request #734 from xcazin/fr-FR

fr-FR translations for new translateable strings since 5.0.14
More fr-FR translations for Plugins-related strings in ControlPanel
Add chinese translations for the new functionality of enable/disable plugins in control panel
Merge pull request #737 from xcazin/fr-FR

More fr-FR translations for Plugins-related strings in ControlPanel
Merge pull request #736 from BramChen/master

Update chinese translations
Add full download link to GettingStarted
Fix padding for plugin dropdown
Fix problem with refreshing the edit widget