GSim 0.17.2 released

What's new in this version:

* Projection area on 2D plot can contain skylines as an alternative to sums.

* Several improvements in visual representation of 1D spectra.

* Integrals can be deleted one by one.

* 'Sinebell' and 'Square Sinebell' apodization functions

* Several bug fixes. The most important fixes: automatic baseline correction should work now for most conventional spectra. Spectrum width should be read correctly from most Bruker .1r files.