default tinymce config to have default height and width
removes outcommented code
Replaces all rootScope.broadcast with eventsService

Broadcast is inefficient and eventsService gives us extra options for
funneling all app events through one pipeline.

For now it just replicates rootScope on/emit, but longer term we can get
this to handle async UI events
Merge branch '7.0.1' of https://github.com/umbraco/Umbraco-CMS into 7.0.1