Changed getNodeInfo function to anticipate scene files

It doesn't yet DO anything with that information (just prints an
error message), but the structure is there.
Added new lockAsset function

However, we still default to the old lockAsset function for now.
We will do more testing before we switch over (IF we switch over).
Merge pull request #186 from eestrada/master

Changed getNodeInfo function to anticipate scene files & Added new lockAsset function
Merge pull request #188 from bkingery/master

Clobber permissions was breaking
Add Evan's standalone shell scripts
Merge branch 'master' of git://github.com/byu-animation/byu-animation-tools
Merge pull request #189 from eestrada/master

Add Evan's standalone shell scripts
Changing locking mechanism for check in/out

Now assets will be locked with all sub nodes editable. This is
different from before when the assets weren't locked at all once
they were checked in.
Merge pull request #190 from eestrada/master

Changing locking mechanism for check in/out
Make editable node separate from container nodes
Merge pull request #191 from eestrada/master

Make editable node separate from container nodes
Added displacement along vector VOP asset

Only really supports object and world space vector displacement.
Tangent space is still giving me heartburn.
Merge pull request #192 from eestrada/master

Added displacement along vector VOP asset
Added normals_from_map VOP and updated Ubershader
Merge pull request #193 from eestrada/master

Added normals_from_map VOP and updated Ubershader
All container assets are locked at checkin

Editable nodes are affected at checking. Everything else is left
alone to use whatever it's definition contains.
Merge pull request #194 from eestrada/master

All container assets are locked at checkin
Add normalsfrompos.otl

This is required by vector displacement node, which in turn is
required by the ubershader. Hasn't showed up before since the
ubershader is precompiled.
Merge pull request #196 from eestrada/master

Add normalsfrompos.otl
Fixed misspelling of .otl file name