Collection docs: models is not optional if options is passed in
Merge pull request #3265 from tomascasas/bb-col-doc-update

Collection docs: models is not optional if options is passed in
Send correct 'at' when firing 'add' event
Merge pull request #3039 from fastest963/master

Send correct 'at' when firing 'add' event
updated underscore 1.6.0 -> 1.7.0
added schema logic
support for inline schemas