Moved grain_growth_tests from combined to phase_field for #3908
Added gold files for simulations with mesh adaptivity for #3908
Refactored FiniteStrainMultiPlasticity.

There are important, very subtle changes here in addition to the
refactoring that involve the residual2.

Also included more tests of the multi-surface stuff, and
relaxed tolerances in mohr-coulomb tests to get passes on different
architectures.

Fixes #3879
Merge pull request #3917 from tonkmr/MoveTests_3908

Moved grain_growth_tests from combined to phase_field for #3908
Try a longer timeout for new PBP test
refs #3024
Merge pull request #3923 from WilkAndy/multi_tests_3879

Refactored FiniteStrainMultiPlasticity.
Fix trailing space issue
closes #3810
Agreed, this never worked right - use deprecated params instead - closes #3914
Add a few more exception cases to python parser
closes #3155
Merge pull request #3926 from permcody/trailing_space_3810

Fix trailing space issue
Merge pull request #3928 from permcody/there_fixed_it_3914

Agreed, this never worked right - use deprecated params instead
Add ExpressionBuilder to phase field module (#3927)
Document ExpressionBuilder (#3927)
Merge pull request #3929 from permcody/parser_enhancements_3155

Add a few more exception cases to python parser
Rework substitution to make it not stupid (#3927)
Work around shoddy compiler error analysis (#3927)
Fix parser bug
closes #3404
Skip test on clang - it's just not fast enough
refs #3024
Pass by reference, add single bracket convenience functions (#3927)
Implement binary operators on functions (#3927)