onplay mode for loading
postpone play call and use callback from load call
drawThumbnail draft
drawThumbnail
minor fixes on thumbnail-loading and playing sequence
store received scene as id
work on proper resizing of thumbnail
show empty screen while thumbnail is loading
remove debug logging
Merge pull request #182 from Animatron/ability-to-set-preview

Ability to set thumbnail
ability to pass thumbnail in options object
fix mistype
Merge pull request #183 from Animatron/ability-to-set-preview

Ability to pass thumbnail URL in player options object
forSnapshot should accept options to override the user-defined ones
Merge pull request #184 from Animatron/ability-to-set-preview

Pass options to forSnapshot function
ability to pass thumbnail URL and loading mode from canvas tag, plus fixes for setting the thumbnail
Merge pull request #185 from Animatron/ability-to-set-preview

Ability to pass thumbnail URL and loading mode from canvas tag
the images for designers, also may be used as documentation
add end-screen to the images
fix NPE when dragging the mouse