add easyconfigs using CrayGNU/5.2.25 toolchain

add easyconfigs using CrayGNU/5.2.40 toolchain

list tcsh as build dep in WRF built with CrayGNU, rather than providing it as a build dep

only use 'dynamic' toolchain option, not 'shared', in easyconfigs using Cray toolchain

enable usempi in GROMACS Cray easyconfig, the easyblock enables MPI support on it

{toolchain}[Cray*/5.2.40] HPL 2.1 (REVIEW)

{bio} [foss-2015a] BLAST+ 2.2.30 (REVIEW) 

{lang}[intel/2015a] Python 3.4.3 (REVIEW)

{lang} [intel-2015a] python 3.4.1

{system}[intel/2015a] OpenSSL 1.0.1m (REVIEW)

{bio}[intel/2015a] SaguaroGW (REVIEW)

{bio}[intel/2015a] GROMACS 5.0.4 (mt, hybrid) (REVIEW)

Gromacs 5

drop non-existing source URL, remove uncommented source tarball for regressiontests

add easyconfig for Platanus (binary)