Fixed mesh types in XflowSkinning
Added shader overrides example
Updated xml3d.js to include some Xflow fixes.
Updated custom shader format
Started with some statistics
Improved animation in shader override example
Converted all examples from xhtml to html
Added skinning example again, added missing ressource in video example.
Fixed HTML5 examples.
Renamed prototype example to dataflow.
Converted startpage to html.
Merge remote-tracking branch 'cg/html' into 4.5
New scripts

- xml3d.js
- jQuery
- jQueryUI
- xml3d-camera.js
Adapted OpenCTM loader to new interface
Fixed references to new index.html start page.
Improved meshlab loader to not cache original JSON file.
Small layout improvement
Added new setScriptValue example.
Updated xml3d.js and camera.js version
Fix bug due to switch to jQuery 1.9.1