Now adds a card if there are no cards when an app loads.
Merge branch 'develop' of https://github.com/mozilla-appmaker/appmaker into cards
Merge branch 'develop' of https://github.com/mozilla-appmaker/appmaker into cards
merge fix
Converted the Card Tabs to a polymer element.
merge fix
Updates to the cards
- now properly highlights starting card
- removed some unnecessary listeners
Nuked a log.
Converted array iterating to forEach method instead of 'for' loops.
Moved grabbing 'ceci-app' to the ready block of the card-nav element.
Markup spacing cleanup.
Using this.shadowRoot.querySelector instead of ID scoped method.
merge fix
Fixed bad merge.
Spacing fix.
sample env cleanup
Merge pull request #627 from bczulauf/env

sample env cleanup
Merge pull request #622 from flukeout/cards

Switched to shadowRoot for the querySelector
added better error handling, made list the default
Merge branch 'develop' of https://github.com/mozilla-appmaker/appmaker into add_mongo