Makefile: extended distinction between linux and windows such that file-paths use either / or \. However, this solution is not very cute, as it just duplicates most of the makefile ...
replaced 'uint' by 'unsigned int' in QSSDoubleArray.cpp
fixed bug in clean target of Makefile
removed debug-msg from powergui.cpp
added case-distinction for win and linux in Makefile-generation: use either / or \ in file paths
added possibility to cleanup both for windows and Linux
added Make-targets to create and delete the doxygen documentation
removed all autogenerated files from git-repo