add BEDTools v2.18.1, sync BEDTools easyconfigs

Eb config bwa 0.7.5a goolf 1.4.10.eb

another combo PR

Conflicts:
	easybuild/easyconfigs/p/Python/Python-2.7.6-goolf-1.4.10.eb
	easybuild/easyconfigs/p/Python/Python-2.7.6-ictce-4.1.13.eb

Conflicts:
	easybuild/easyconfigs/r/R/R-3.0.2-ictce-5.3.0.eb

Cp2k

add CP2K easyconfig with ictce/5.5.0 + deps

In the easyblock, we will check in the dependencies for libxc and libint

combo PR

Added GMP 5.1.3 with ictce-5.5.0 and c++ support

Valgrind: updated to 3.9 with goalf-1.5.12

Conflicts:
	easybuild/easyconfigs/b/Bison/Bison-2.7-ictce-5.3.0.eb
	easybuild/easyconfigs/d/Doxygen/Doxygen-1.8.3.1-ictce-4.1.13.eb

provide alternative download URL for Mesa

bump versions of ictce 6.x to allow downgrading, bump impi version in ictce 6.1.5

add easyconfig file for EB v1.9.0