Adding all eb config files for the new gmpolf toolchain.
rebase gmpich easyconfig for FFTW 3.3.3 on gmvapich easyconfig (rather than one for a Clang-based toolchain)
align gmpich2 and gmpolf toolchain versions, fix dependency specifications in toolchain easyconfigs
fix final remarks
Merge pull request #1 from boegel/adding_gmpolf

fix remarks
add gzip easyconfig for gmpolf toolchain, clean up comments in gmpolf toolchain
Merge pull request #2 from boegel/adding_gmpolf

add gzip easyconfig for gmpolf toolchain, clean up comments in gmpolf toolchain
Merge pull request #460 from Bart-CER/adding_gmpolf

add easyconfigs for gmpolf toolchain + example easyconfig for gzip with gmpolf