checkin of updates to latest version of widget tree format, includes tiddler, slider and tabs macros
added update for triple double-quotes macro params
removed version info
Merge branch 'master' into fr-FR
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Preparing for 5.0.15-beta
Translatability for the unsaved changes message

Another bit of #491
Move the unsaved changes warning into the syncer
Fix unclickable download link in upgrade wizard
Move construction of rootwidget into main startup
Move syncer-browser startup handling into syncer.js
Fix rootwidget handling
Move syncer event handlers into syncer module
Merge remote-tracking branch 'upstream/master'
Add chinese translations of unsaved changes message