Hopefully the last of output_on/execute_on syntax changes (refs #4419)
Changed Exodus test that was duplicate (refs #4419)
Merge pull request #4448 from aeslaughter/synatx-4419

More syntax changes
allow csv to accept max size fields. Closes #4450
Improved parallel communication in PointValue
(closes #4407, closes #3431)
Switch to BoxMarker in point_caching_adaptive_refinement test.

Also displacing the Dirac points off the element corners slightly, to
make this example more robust in parallel.

Refs #4442.
Merge pull request #4451 from milljm/memory_logger_csv-field

allow csv to accept max size fields
Merge pull request #4453 from aeslaughter/csv-broken

Improved parallel communication in PointValue
Add element containing start point in elementsIntersectedByLine() closes #4458
Merge pull request #4459 from bwspenc/raytracing

Add element containing start point in elementsIntersectedByLine()
Fixed logic error resulting invalid postprocessor warning
(closes #4435)
Add VectorPostprocessors to get materials along a line closes #4462

This provides an abstract base class, LineMaterialSamplerBase, that
has the basic machinery for extracting the material properties for the
elements along a line, and two derived classes,
LineMaterialRealSampler and LineMaterialSymmTensorSampler, for
extracting data for specific material types.
Merge pull request #4460 from aeslaughter/warnings-4435

Fixed logic error resulting invalid postprocessor warning
Merge pull request #4463 from bwspenc/material_vectorpost

Add VectorPostprocessors to get materials along a line
Merge pull request #4452 from jwpeterson/dirac_adapt

Switch to BoxMarker in point_caching_adaptive_refinement test.
Do not use _args in DBM (#4441)
Retrieve mapping from params (#4441)
Move args out of DerivativeBaseMaterial add lookup for  libMesh var numbers (#4441)
Alternate approach for variable name mapping (#4441)