Updated to WebODF 0.5.4.
Need to provide custom "readFile" and "loadXML" functions.
Patching of "read" and "getFileSize" is no longer required.
Release blob urls when no longer needed.
Merge pull request #118 from fancycode/webodf_054

Updated to WebODF 0.5.4
Implemented Classroom view.
Changed color of smally view to black.
Allow upscaling of local mini video.
Make classroom video layout work in main mode.
Removed top border from audio video.
Decreased right padding for overlay logo.
Fixed setting of default room from user settings by loading them first.
Allow room names to start with @,$,+ characters.
Added class around online indicator to allow customization with directive.
Removed selfview video layout.
Implemented democrazy video layoyt and use it as default.
Added onepeople layout back as large view and completed translation.
Fixed audio level indicator which was not visible.
0.22.4
Avoid removing too much DOM nodes - remove remoteVideos explicitly.
Show own videos earlier when in democrazy layout.