Returning const references for accessors
Lots of cleaning up in MOOSE internals
closes #3357 #3358
fix csv transient test in parallel refs #2899
Merge pull request #3362 from permcody/const_it_up

Returning const references for accessors
Merge pull request #3365 from friedmud/csv_transient_2899

fix csv transient test in parallel
Fixing warnings after recent exodiff update.

Refs #1777.
Use broadcast in PointValue
(refs #2899)
Limiting restart tests, they also are failing with threads
(refs #2899)
Merge pull request #3374 from jwpeterson/exodiff_warnings

Fixing warnings after recent exodiff update.
Add new version of script to combine csv files from VectorPostprocessor ref #3309
Merge pull request #3375 from aeslaughter/general-2284

A few changes related to parallel/threading tests
Merge pull request #3376 from bwspenc/csv_script

Add new version of script to combine csv files from VectorPostprocessor
pressure pulse test p_fu_lumped_22.i tightened convergence criteria and regolded.  Fixes #3368