Add ncdf4 for intel-2015a for a user.

{math}[foss/2015b] numpy v1.10.1

{tools}[dummy/dummy] EasyBuild v2.6.0

I tried to also do it for intel-2015b w/ netCDF-4.3.3.1 but it has conflicting
dependencies that won't work with R-3.2.1-intel-2015b (cURL 7.43 vs 7.45).

bump version to 2.6.0 and update release notes (REVIEW)

RSEM-intel minor corrections

{bio}[goolf/1.4.10,Python/2.7.3] MACS2 2.1.0.20150731 (REVIEW)

Update IMPUTE2 to 2.3.2

MotEvo-1.02-goolf-1.4.10.eb (REVIEW)

List M4 as a dependency for GMP 6

Add BEDTools 2.25.0 for FOSS 2015a

{compiler}[dummy] GCC 5.3.0 (REVIEW)

{bio}[GNU/4.9.3-2.25] RSEM 1.2.26 (REVIEW)

{tools}[dummy/] binutils v2.25.1

fix version conflict on M4

{devel}[GCC/4.9.2] make v4.1

Add easyconfig for PGI 15.7 using GCC 4.9.2 libraries.

Add easy_install to setup.cfg

add missing easyconfigs

don't hardcode toolchain for Autotools build dep

sync with develop