implemented default view attributes (autoload, sticky, solo)
fully establish cell grid on render + clean up
iframe/vimeo lifecycle redone. added 'solo' attribute.
added loading animation for iframe/vimeo cells
add extra attribute fields to iframe cell
let the iframe content overlay the loading anim, as soon as possible. (don't wait on load event)
added postmessenger communication with iframe
solo should not just be handled on click
implemented on-finish trigger for vimeo cells
Revert c15bfbb..09cedc8

This rolls back to commit c15bfbb14ae8e139023ea01b1bc457c088065849.
Revert "Revert c15bfbb..09cedc8"

This reverts commit 49e0b6598004e8aff47389f5a71034a56cbf87fa.
added smooth scrolling to vimeo on-finish trigger
added random choice syntax to on-finish trigger.

updated lodash for _.sample(). (lazy, yes, but hey, it's 2.15 a.m.)
proper load states for "media" cells
Merge branch 'refactor'