added gbm package to R
Added ghostscript
added HTSeq and new matplotlib goolf versions
bumped matplotib version
added new matplotlib for goolf and ictce + ictce for HTSeq
added freetype for 4.1.13 + bumped zlib version in libpng for consistency
added new freetype for goolf
bumped libpng's zlib on 2 more occasions
undid changes of libpng's zlib bump
added new python + matplotlibs for this python
fixed wrong patch
forgot to change python version
removed wrong matpotlib easyconfigs
added zlib 1.2.7 build for ictce 5.5.0
removed failing sanity check, if import matplotlib works, we're happy
bumped python version for htseq
forgot to bump version of python in matplotlib:
changed one version to much, reverting
removed zlib 1.2.7 for ictce 5.5.0, we will use 1.2.8 for the 5.5.0 toolchain
removed unneeded ec