rewrite underscore dependent code
composition error will cause error for all compositions which are dependent from it
concurrent composition improvements
- prevent compose:complete event for old compositions
- reject outdated compositions for optimization
Merge remote-tracking branch 'origin/route-handler-options'
Merge remote-tracking branch 'origin/render-subviews'
Merge remote-tracking branch 'origin/view-fixes'
Merge remote-tracking branch 'origin/extend-event-handlers'
Merge remote-tracking branch 'origin/composer-async'
change grunt transbrute references to forked repos
Release 1.0.0-dev-8