release EasyBuild v3.1.2

bump to v3.1.2 and update release notes

rename S.A.G.E. to SAGE, can't have directories with trailing dot in Windows

{bio}[foss/2016b,intel/2016b] HTSlib v1.4, HTSlib v1.4

{bio}[foss/2016b] SAMtools v1.4

{math}[intel/2016b] snaphu v1.4.2

{numlib}[intel/2016b] Triangle v1.6

prepare release notes for eb312

remove include/GL/wglext.h from Mesa sanity check

{tools}[intel/2016b] sketchmap v20170130

SAMtools 1.4 easyconfig + patch

Removed unnecessary patch from SAMtools 1.4 and 1.3.1 for intel/2016b and removed the 1.4 patch file from the repository.

SAMtools 1.4 - 2 additional dependencies (additional compression algorithms), but also needs a modified easyblock as errmod.h and kprobaln.h are no loger provided nor needed.

{lang,lib}[intel/2017a] MyMediaLite v3.12, Mono v4.8.0.495

{bio} [intel/2016b] kaiju/1.5.0 (REVIEW)

{bio}[intel/2017a] GROMACS v2016.3

{bio}[foss/2017a] GROMACS v2016.3