- pass through normal paraview (double-dashed) options

- bypass the plugins logic when the --data=... option is provided.
  This allows the command 'paraFoam --data=...' to work too.

- we don't support paraview < 3.x anymore

This reverts commit c5bea524.

This reverts commit 2e1e671d.

- Also adjusted formatting of usage to match what argList generates

- mention PV3blockMeshReader in the README as well

- first version. Only uses simple hex shapes for the blocks.

- this was not agreed.

This reverts commit 41b196ff.

  Pro: Good delimitation. Good visual distinction. No confusion with normal
       cases, since '{}' characters are excluded by !word::valid()
  Con: Possible quoting issues when creating directly instead of via paraFoam,
       but seemed to work fine with bash TAB completion.

  - only create (and remove) case.OpenFOAM file if it doesn't already exist
  - new -touch option just generates case.OpenFOAM file and exits
  - new -region option to create case=regionName.OpenFOAM file
    (the delimiter may change in the future)

  - removed legacy foamDiffSourceList, foamPackChanged
  - added foamPackDoxygen for separate distribution of docs
    handles -prefix option
  - misc. cosmetic changes

because I failed to work out how to merge Mark's stuff -- HELP!!!

* install into paraview-3.3 instead of ParaView3.X.x for consistency with LD_LIBRARY_PATH