opacity fix to remove items from view when they hit their target keyframe
catchall with opacity and display none
added rake task to rename old video layers to embed layers
Merge pull request #91 from maxwellE/opacity_fix

opacity fix to remove items from view when they hit their target keyfram...
Merge pull request #92 from maxwellE/rename_video_to_embed

Rename video to embed
pull from upstream
merge with upstream