Minor json changes
Followup last minor json change
Beginning of slot api infrastructure, and, uh...

No idea.  It compiles, anyway.
More Slot virtualization and basic get api

Not yet sure how SlotAssets will work, but this approach seems basically
sound.  More thought is required for context-sensitivity.
Add records option to slot.get

Working on tags
Merge remote-tracking branch 'remotes/origin/master' into angular

Conflicts:
	conf/routes