partial unit test for -a
Merge branch 'develop' into moar_options_unit_testing
add unit tests for --avail-easyconfig-params and --list-easyblocks command line options
fix empty files
replace spaces by \s+ in regex patterns
Merge pull request #515 from boegel/moar_options_unit_testing

add unit tests for --avail-easyconfig-params and --list-easyblocks command line options