Fixed wrong units for specific heat in API doc for Props and State classes

- unit was [kJ/kg] instead of [kJ/kg/K]
Merge pull request #115 from spinnau/fix_apidoc

Fixed wrong units for specific heat in API doc for Props and State classes
Started work on Fortran wrapper
Added a new makefile and a C wrapper
fixed some fortran and C problems
fixed TTSE on Mac OS, shared libraries are tested on OSX as well.
does not seem to work...
Merge branch 'newWrappers'
Added TTSE for MacOS, basic wrappers for Fortran and C, shared library compilation for Linux and MacOS