Use failIfMajorPerformanceCaveat-Attribute for context creation and check UNMASKED_RENDERER_WEBGL + UNMASKED_VENDOR_WEBGL
Tutorials: Fixed onoutputchange tutorial

While the event handler is stil "onoutputchange", the type of the event is
only "outputchange" in the newest release. The tutorial has been adapted
to reflect this change.
Merge pull request #401 from bhaettasch/master

Tutorials: Fixed onoutputchange tutorial
Added Geo3DExt component to documentation process
Fix for missing Session ID for ImageTextures
Fix for missing SessionID for TextureCubes
Fix for missing Session ID for ImageTextures
Fix for missing SessionID for TextureCubes
Merge remote-tracking branch 'origin/master'
Merge pull request #1 from x3dom/master

update from x3dom
fix mouse up on chrome ( mac and windows touch)

mouse up is recognized by an additional mouse move event with button=0,
but it seems like this event is not fired on mac or on touch input.
checking for the mouse up flag fixes this.
Merge pull request #404 from dschie/master

fix mouse up on chrome ( mac and windows touch)
Merge pull request #403 from Sharian/master

Fixing missing Session ID for Textures
fixed new quaternion w/o parameters

new quaternion was internally set to 0,0,1,0 which are the default
values for an sfrotation (no rotation at all), but represent a rotation
in the quaternion representation
Merge pull request #405 from dschie/master

fixed new quaternion w/o parameters
Corrected the documentation related to the IsosurfaceVolumeData by downcassing ISO to Iso
Renamed ISOSurfaceVolumeData file to IsoSurfaceVolumeData
Corrected IsoSurface references after file rename
Corrections on the documentation of the Volume Rendering component