bump to v3.2.0 and update release notes

New EasyConfig for GIT 2.12.2 foss-2016b toolchain

{lang,tools}[foss/2017a] Node-RED v0.16.2, nodejs v6.10.3

prepare release notes for eb320

{lib}[intel/2017a] tbb v2017_U5

{lib}[goolf/1.7.20] tbb v2017_U5

clean up tbb easyconfig to use enhanced easyblock

{perf}[intel/2017a] IMB v4.1

also build IMB-IO in IMB 4.1 easyconfig using foss/2016a

{perf}[foss/2017a] IMB v4.1

{compiler}[dummy] GCC 7.1.0 w/ binutils 2.28 + deps

align IMB 4.1 easyconfigs for foss/2017a and intel/2017.02

{compiler}[dummy] GCCcore 7.1.0

use pl2 source tarball for FFTW 3.3.6 which already includes patch for F03 interface

{math,numlib}[intel/2017a] SuiteSparse v4.5.5, SuiteSparse v4.5.5, METIS v5.1.0, ...

{bio}[intel/2017a] HMMER v3.1b2

fix sources spec for HMMER 3.1b2 + minor style fixes + better sanity check

adding easyconfigs: SuiteSparse-4.5.5-intel-2017a-METIS-5.1.0.eb, SuiteSparse-4.5.5-intel-2017a-ParMETIS-4.0.3.eb, METIS-5.1.0-intel-2017a.eb, ParMETIS-4.0.3-intel-2017a.eb

also use patch for METIS 5.1.0 to enable use of doubles in easyconfig for foss/2016b

{bio}[intel/2017a] DBG2OLC v20170208