Always write threaded restart files
closes #3250
Fixing PETSc option check
closes #3169
Merge pull request #3251 from permcody/fixup_restart_threads

Always write threaded restart files
Merge pull request #3253 from idaholab/petsc_option_check

Fixing PETSc option check
MaterialProperty.h no longer gives an unused param warning.  Fixed #3256
Merge pull request #3257 from WilkAndy/unused_param_3256

MaterialProperty.h no longer gives an unused param warning.  Fixed #3256
Make sure we handle having a "problems" directory under the application - closes #3184
Adding ScalarCoupleable interface to ElementUserObjct (closes #3265)

It was not able to use scalar variables in anythong derived from
ElementUserObject, because it was missing ScalarCoupleable interface.
Fix incorrect suffix trimming logic
closes #3159
Merge pull request #3263 from permcody/peacock

Make sure we handle having a "problems" directory under the application
Merge pull request #3266 from andrsd/scalar-coupleable-for-elemental-user-objects

Adding ScalarCoupleable interface to ElementUserObjct (closes #3265)
Adding DifferencePostprocessor (closes #3268)
No executable required if not using RunApp derived Tester - closes #3239
Merge pull request #3270 from permcody/testharness_no_exec

No executable required if not using RunApp derived Tester
Merge pull request #3264 from permcody/TestHarness_fix

Fix incorrect suffix trimming logic
Merge pull request #3269 from andrsd/diff-pps

Adding DifferencePostprocessor (closes #3268)
Avoid making @aeslaughter angry
closes #2928
Remove [AuxBCs]
closes #3021
Modified CrackFrontDefinition to support embedded cracks