fixed remove jitter filter (now actually functional) and updated help file.
filter now functions identically to align by misorientation but performs a linear background subtraction to prevent shearing
Wrote filter to compose an rgb array from 3 grayscale arrays
Wrote filter to read an image of the same dimensions as a dataset into an array
Corrected generate misorientation colors from radians to degrees
Fixing bug where conversion of angle to radians would be applied to value stored in pipeline history
Implemented method to convert RGB colors from generateMisorientationColor back to disorientations
Fixing issue with writing 16 bit integer data sets to Xdmf.
Merge branch 'master' into m_develop

* master:
  Updating release notes
Fixing use of C++11 auto keyword in non-c++11 compilers. Muting warnings about redeclared classes from Boost's bimap.
Updating read me for latest version