Fies issue with rotation and zoom controls not working
Update load command to make it clearer it's a string
commits back simulation file tutorial button now that it's on the docs
site and updates custom file
Adds button inside help modal window to launch tutorial
adding quit tutorial button
work done for selection and displaying multiple entities with position
Improving Performance

According to this test http://jsperf.com/push-instead-static-declaration
is more faster declaring values in an array than using push.
Little performance improvement
Performance Improved

Cached almost all elements instead looking for it everytime by jquery
and little changes.
Jquery cached
Fixed typo
cached
Cached
push is more fast than length
Merge branch 'improvePerformance' of git://github.com/dlion/org.geppetto.frontend into dlion-improvePerformance
Merge branch 'dlion-improvePerformance' into development
Basic Collada support
fixes for selection and unselection. fixes console showing can't find
webgl_failed variable
Merge pull request #96 from openworm/selection_multiplentities

Selection and unselection of entities
fix glitch in selection