few additional includes in .gitignore

removed NumGrainsInParent FIeld

small code cleanups

updated Group MicroTexture Regions documentation
Merge branch 'develop' of ssh://github.com/dream3d/DREAM3D into develop

# By Michael Jackson
# Via Michael Jackson
* 'develop' of ssh://github.com/dream3d/DREAM3D:
  Modifying the use of the DataContainer macros to more closely resemble the DCRedefine branch. Also using typedef for the FilterParameters for each filter which will also cut down on merge conflicts when bringing in the develop branch into the DCRedefine branch.
  Moving more files around to more closely match the DCRedefine branch since this will eventually become the develop branch
  Moving iDataArray and subclasses to their own folder
  Moving DREAM3DMath to the Math folder