fixes #1384 prevent xss attack in app title, also did a first pass of where we can use textContent in place of innerHTML
fixes #1670 Removing the mailman
Merge pull request #1674 from ScottDowne/t1670

fixes #1670 Removing the mailman
Stylin' updates to make things look more like webmaker.
More style updates
More webmaker-like styling updates
More stylin' updates
fixes #1672 remove dead left class
Merge pull request #1679 from ScottDowne/t1672

fixes #1672 remove dead left class
PR Fixes
Merge pull request #1678 from flukeout/styleupdates

Webmaker-Like Styling Updates
Default broadcast/listener fix

1. Moved code in ceci-element-base::attached" to ceci-element-base::applyDefaults to be called by component-tray again.
2. Simplified ceci-channel-vis and ceci-channel-menu communication.
3. Added CeciChannelUpdated event from within ceci-element-base for which ceci-channel-* can listen.
Merge pull request #1676 from secretrobotron/t1673

T1673
Updats to bundles
Bundling popcorn.js
fixes #1689 editable checkbox style fix
Garbage icon deletion fix

1. Added detached function to ceci-element-designer.
2. attached/detached use bound cleanup function to do element removal.
Merge pull request #1709 from secretrobotron/t1708

Garbage icon deletion fix
Re-bundling
Merge branch 'develop' of github.com:mozilla-appmaker/appmaker into develop