Merge pull request #135 from jmoborn/master

Warning window for unlock
Merge pull request #136 from jmoborn/master

Rollback 'Open Version' feature temporary fix
Murphy fixed normals and uvs in alemebic convert
Merge pull request #138 from bkingery/master

Murphy fixed normals and uvs in alemebic convert
Removed abc2bjson tool

With Houdini 12.5 supporting direct loading of Alembic files into
Mantra, this tool becomes obsolete.

Also, changed lockedBy function to only use Python 'pwd' module,
not spawn a subprocess. Should be cheaper.
Merge pull request #139 from eestrada/master

Removed abc2bjson tool from code base
Updated config files that had been changed in production
Added files to extend PRMan support

Includes RSL otl files, SOHO wranglers and RSL light
shaders for the GI Light and Environment Light, and compiled
versions of the light shaders (compiled for PRMan 17.0).

RIB ROP presets were updated to reflect changes.
Merge pull request #140 from eestrada/master

Added files to extend PRMan support and config files present in Production folders
Had some weird merge problems with lockedBy code. Fixed now
Merge pull request #142 from eestrada/master

Had some weird merge problems with lockedBy code. Fixed now
commented out bjson conversion