first cut at touch support for orbit and pan, skeleton support for pan
improve z fighting adjust for preview voxels and highlights
added selectable tools to the tool palette
Merge branch 'master' of https://github.com/worklist/hifi into more_edit_js
add Voxels.getFaceVector() to JS
fix calculateVoxelFromIntersection() in editVoxels.js to work same as C++ code for voxel sizes larger than intersecting voxel
make changes to local tree in Voxels JS interface
added clipboard support to editVoxels.js
removed some debug settings
added Voxels.getVoxelAt() to inspect local tree
Merge branch 'master' of https://github.com/worklist/hifi into more_edit_js

Conflicts:
	examples/editVoxels.js
removed files we don't need
removed unneeded code
removed accidental code
add work around for voxel add of larger voxel on top of smaller voxels
Merge pull request #2059 from ZappoMan/more_edit_js

editVoxels.js updates: clipboard support, multitouch orbit, and better support for "larger" voxels
Merge pull request #2047 from ey6es/metavoxels

Another metavoxel checkpoint: more work on streaming, editable attributes, changed to use existing session code, work on "spanners" (objects that span multiple octree nodes).