The VideoBlock Plugin allows you to paste a YouTube URL into the active editable and it will be replaced by the appropriate iframe embed code.
format-plugin: javascript error on initializing format plugin.
added fixes requested at https://github.com/alohaeditor/Aloha-Editor/pull/1155
Merge branch 'f-youtube-video' into dev
Merge pull request #1170 from najor/dev-format-plugin

format-plugin: javascript error on initializing format plugin.
Highlights and removes disallowed elements (empty paragraph and consecutive br's)