add support for OpenBLAS as toolchain lib for linear algebra
add support for goolf toolchain
fix Lapack import
no BLACS in goolf
allow empty list of BLACS modules
also define list of MT BLACS libs empty, and handle that properly
Merge branch 'develop' of github.com:hpcugent/easybuild-framework into develop
oldstyle defaults test
Merge branch 'develop' into openblas
config unittests
fix bug in repohandling
Merge branch 'fix_legacy_prefix' of github.com:stdweird/easybuild-framework into fix_legacy_prefix
integrate unit tests with those of #556
rename args to repoargs to avoid trouble with global name 'args'
get rid of non-required old-style prefix-related lines of code
Merge branch 'fix_config' into fix_legacy_prefix

Conflicts:
	easybuild/test/config.py
	easybuild/tools/config.py
get rid of test2 cruft
Merge pull request #18 from boegel/fix_legacy_prefix

integrate unit tests with existing ones
some more merges after boegels PR
proper name,version order when using --try-toolchain=NMAE,VERSION