Merge pull request #66 from kepstin/html5-bridge

Html5 bridge UI updates
setpresenter, mouse movement, and starting to send pencil drawings
added whiteboard pencil pending store the shape
load presentation in both sides html5 and flex
move and back slides
removing upload button
added a better quality for converting images
storing pencil shape
Update labs/bbb-html5-client/README.md
Update labs/bbb-html5-client/README.md
 - provide a way to stream to outcast
 - allow broadcasting even if the meeting isn't being recorded
 - external icecast protocol property
 - make properties for icecast stream configurable