Fixing small logic bug in #3655
Ignore warnings from VTK header files.

Refs #1777.
Fixing a few signed/unsigned comparison warnings.

Refs #1777.
Modified FiniteStrainCrystalPlasticity #3607

Added and regold tests #3607
Merge pull request #3687 from jwpeterson/fix_warnings

Fix warnings
Fill in _objects_by_name for constraints to enable multi-threaded runs (closes #3690)

When a constraint is added, we have to add the MOOSE object pointer into
the _objects_by_name array for thread 0 (which we correctly do). But we
also have to add an empty array for the given name for threads with TID
> 0. That way the call to getObjectsByName() is not broken for calls
with TID > 0.  It mistakenly reports 'no object of a given name', but
the object is there, just not for the given thread.
Merge pull request #3665 from cpritam/feature_3607

Feature 3607
Merge pull request #3691 from andrsd/mt-constraints

Fill in _objects_by_name for constraints to enable multi-threaded runs (...
Declare 'unsigned int' consistently with rest of MOOSE.

Refs #1777.
Lode angle in RankTwoTensor now accepts argument to deal with
precision loss problems

Mohr Coulomb added - 12 tests added ranging from trivial exception
tests, to somewhat more complicated tests that map out the yield
surface with hardening and smoothing.

I'd really like people to start using this so we make the algorithms
more robust.  I don't think there are any explicit bugs, but this
particular non-linear root-finding problem is numerically more
challenging than the other plasticity models, so for particular
combinations of tolerances, etc, the algorithm could fail to converge.
It would be nice to know what those combinations are so we can build
a better algorithm!

Fixes #3627

Pushing this up to origin again to try to get the PR_pre_test stuff working