LLSliderCtrl callbacks actually get the child LLSlider object, not the LLSliderCtrl object.
Support Legacy Region/Estate Environment

Also Disable Environment Tab when the cap required to use it isn't supported.
Merge remote-tracking branch 'shyotl/master'
Less prim peekaboo antics.
Update LSL information (Adds new AnimationOverride)
French translation update
TEMPORARILY disable erroring out during mesh upload
Add another menu insert point in the admin menu.
Merge branch 'master' of github.com:singularity-viewer/SingularityViewer