Fixed channel icon font size. It wasn't set so component styles were affecting it.
Merge branch 'develop' of github.com:mozilla-appmaker/appmaker into develop
The sortable placeholder is just a blue box now instead of a weird clone of the element.
Sortable elements, when dragged, don't have any channel menus / lines now.
Fixes
Merge pull request #1485 from flukeout/sortablefix

Sortable updates