disable optarch when using intel compilers and enable tests in all libxc-3.0.0 easyconfigs

disable optarch when using intel compilers and enable tests in all libxc-2.2.3 easyconfigs

{data}[foss/2017b] netCDF-Fortran v4.4.4, netCDF v4.4.1.1

{data,vis}[GCCcore/6.4.0,foss/2017b] grib_api v1.24.0, JasPer v1.900.1

{bio}[intel/2017b] InterProScan v5.26-65.0

{bio}[intel/2017b] Bismark v0.19.0

{bio,lib}[GCCcore/6.4.0,intel/2017b] Bowtie2 v2.3.3.1, tbb v2018_U1

{data}[intel/2017b] netCDF v4.4.1.1, netCDF-Fortran v4.4.4

{numlib}[intel/2017b] FFTW v3.3.6

{vis}[GCCcore/6.4.0] Add gperf as fontconfig build dependency

{bio}[intel/2017b] BCFtools v1.6, HTSlib v1.6, cURL v7.56.0

adding easyconfigs: BCFtools-1.6-intel-2017b.eb, HTSlib-1.6-intel-2017b.eb, cURL-7.56.0-GCCcore-6.4.0.eb

{lang}[dummy/dummy] Java v1.8.0_152

{vis}[intel/2017a] ImageMagick v7.0.7-8 w/ JasPer 1.900.1

fix checksum for OpenFOAM 5.0 source tarball

{tools}[intel/2017b] Horovod v0.9.10

{chem}[intel/2017b] QuickFF v2.2.0

add missing extensions required by MultiQC & stick to networkx

{devel}[intel/2017b] Tensorflow v1.3.0, protobuf v3.4.0, protobuf-python v3.4.0

{chem,data,lib,math}[intel/2017b] yaff v1.4.2, molmod v1.4.3, future v0.16.0, ...