Try statically linking gfortran in pymc

See https://github.com/pymc-devs/pymc/issues/556#issuecomment-58923533.
Put patches in the right section
Remove newline from the end of the patch
Remove unchanged part from patch
Update pymc patch
Fix pymc patch
Try to fix pymc patch
Try statically linking libgcc
Fix pymc patch
Try compiling everything statically in pymc
Fix pymc patch
Add sphinx-argparse
Add sphinxcontrib-autoprogram
adds zlib build and run requirement for hdf5
lets hdf5 find zlib provided by conda
Add help2man
Add a bld.bat for help2man
Update pandoc
Add bld.bat for xz
Add libpng package from Anaconda