add doSNOW package to R 3.2.3 easyconfigs

{tools} [dummy] Firefox-44.0.2 (REVIEW)

{geo}[intel/2016a] rgeos 0.3-17 w/ R 3.2.3 REVIEW)

{bio}[foss, 2015b] VCFtools-0.1.14 bugfix

{system} [intel/2016a] gnutls (REVIEW)

{vis}[intel/2016a] p4vasp 0.3.29 (REVIEW)

{vis}[intel/2016a] Glade v3.8.5

add patch file to imkl 10.2.6.038 32-bit easyconfig to fix installer not being able to deal with -- in build path

GLib doesn't require libxml2 with Python bindings

add patch file to imkl 10.2.6.038 32-bit easyconfig to fix installer not being able to deal with -- in build path]

add missing libX dependencies for cairo

{cae}[intel/2016a] GATE 6.2 + GATE 7.1 + GATE 7.2 (REVIEW)

add easyconfig Glade-3.8.5-intel-2016a-Python-2.7.11.eb, add easyconfig intltool-0.51.0-intel-2016a.eb, add easyconfig XML-Parser-2.41-intel-2016a-Perl-5.20.3.eb

{vis}[intel/2016a] PyOpenGL v3.1.1a1

$LD is set correctly in GATE easyblock, so remove from easyconfig (cfr. https://github.com/hpcugent/easybuild-easyblocks/pull/855)