Feature caching in FeatureSourceIndexNode
Annotations: added setters for various properties on Annotation nodes.
Annotations: couple minor changes
OverlayDecorator: refactored to accept multiple techniques; moved the original functionality into the new DrapingTechnique.
Added ClampingTechnique and ClampableNode.
Making sure to turn off autoclamping in FeatureNode if the style doesn't support it.  This is necessary for when you change styles at runtime.
ClampingTechnique: applied a maximum clamp offset to prevent distance objects from clamping to the front.
CLampingTechnique: working nicely--need to tweak the min/max offsets/ranges based on various scenarios.
Added OverlayNode as a base class for ClampableNode and DrapeableNode.
ClampableNode: add depth offset settings and AUTO-do calculation.
ClampingTechnique: xome cleanup
Added new backfill tool.
Exporting ImageMosaic so it can be used in external applications.
Fixed issue with TMS getURL where it would prepend a / if the path was in the current directly.
Moved TMSBackFiller to it's own file.
Finished comment.
Fixed issue with concatPaths and urls introduced in previous commit.
Testing renderbin clamping.
temp
add ClampingBinTechnique
EarthManipulator: add support for touch events (android tested, ios not yet tested)
EarthManipulator: cleanup for mobile commit