add support for customizing software and modules install path suffixes
Merge branch 'develop' into install_sufixes

Conflicts:
	easybuild/easybuild_config.py
Merge branch 'install_sufixes' of github.com:boegel/easybuild-framework into install_suffixes
fix comment in default EasyBuild config file
fixed long line
Merge pull request #432 from boegel/install_sufixes

add support for customizing software and modules install path suffixes