qtiplot: a cross platform data analysis and scientific visualisation solution

New pakage qtiplot: QtiPlot is a cross platform data analysis and scientific visualisation solution.


Very cool package for data analysis. Good graphic interface and usability.


the patch resolve:
1) some headers problem. For example glps2 use zlib and libpng
2) qwt3d_openglhelper.h neeed to include <glu.h> 
3) the target plugin installation path is not /usr/local/qtiplot/plugins but somethin $$PREFIX/lib/qtiplot/plugins and correlations to the installation of the binary of qtiplot and so on.

some small fix to fit with homebrew requirements. The actual qmake project script is bad.