Fix for mouse ray with off axis projection.
Merge pull request #1033 from ey6es/master

Fix for mouse ray with off axis projection.
Reverse direction of eye offset.
Merge pull request #1034 from ey6es/master

Try reversing the eye offset z component so that leaning forward makes things bigger.
Further code cleanup on particle cloud
Merge branch 'master' of https://github.com/worklist/hifi
More coding standard fixes to particle cloud