Remov more warnings when g++ is used
recovery two files that are corrected in one PR by Tom
Style: Removed spaces, tabs at the end of line.
[TetGenInterface] Var "id" is not used.
[TetGenInterface] Narrowed scope of pos_beg and pos_end.
[TetGenInterface] parseElements(): const method.
[TetGenInterface] alloca is not part of standard.

alloca is not part of the standard, the behaviour is compiler dependend,
some sites in the net say that implementations can contain bugs.
[TetGenInterface] Removed unused code.
[TetGenInterface] Made two methods const.
Merge pull request #9 from TomFischer/TetGenReaderExtension

Some commits concerning style and a warning.
Remov more warnings when g++ is used
recovery two files that are corrected in one PR by Tom
[MeshLib] Fixed unused variable warnings.
Fixed indentation.
Fix NumLibFemIsoTests.
Merge pull request #8 from TomFischer/Remove_Warnings

Fix Tests, Remove warnings
Merge pull request #394 from rinkk/TetGenReaderExtension

TetGen geometry import/export
Merge pull request #387 from wenqing/Remove_Warnings

Remove more warnings when g++ is used
added basic structure for creating subsurface geometries suitable for tetgen meshing
adjusted convertMeshToGeo to write a seperate surface for each matgroup