Channel colors update
Channel menu updates
Moved channel definition to the designer base element so it's not duplicated inside channel menu and channel vis.
Removed unused CSS for the channel colors, it's all dynamic now.
couple of fixes to align with luke's work again
Merge pull request #1621 from secretrobotron/channelcolors

Channelcolors
When an app is published, the first card is set to visible so it will act as the index page for the app.