- add points/faces constructor to ensightPartFaces with optional
  contiguousPoints flag.

- Remove the now redundantensightPartNonMeshFaces class.

- easier (more logical) when adding a new writer

ENH: add surface field  writer for 'starcd' format

- creates *.usr files, which can be read in proSTAR with the 'getuser'
  command, but which can also be parsed directly since the format is
  extremely primitive

- now remove all generated files for all platforms when the version
  changes

- use function when sourcing the bashrc to avoid these problems