Merge branch 'release/0.179' into develop
fixed can not call resolve on an undefined value bug
added expected_sample_from_metadata_key option so that expected_sample can be taken from individual if necessary
improved error messages in _resolve_inputs() for when the file does not exist and we do string match to test file types
fixed zgrep to only get exact matches to the sample
added new perl_for_penncnv_exe option to penncnv_detect_cnv step and updated penncnv tests to work
version bump
Merge branch 'release/0.180'