First pass at test suite
working on README
got ordered dict instead of regular dict

Also got it to gen/retrieve obs mask only once rather than every time
Merge pull request #140 from PCMDI/issue_139_ordered_dict

LGTM - got ordered dict instead of regular dict
Adding gleckler1 param files for amip and historical json creation
fix #142 - Remove duplicate num_cpus, tweak completion msg and add metrics email
Merge pull request #136 from gleckler1/issue108_gleckler1_README_progress

working on README - @doutriaux1 I'm happy to pull this across now, and I can then start also working on it from master..
cdat/metrics version reporting - fix alignment
Merge pull request #143 from durack1/issue142_durack1_install_metrics_tweaks

fix #142 - Remove duplicate num_cpus, tweak completion msg and add metrics email
lgtm merging
Merge pull request #141 from durack1/issue109_durack1_add_param_files

Adding gleckler1 param files for amip and historical json creation
Adding test_protrait to test suite
merge in master and got portrait plots to work
uncommented out first test case
Updated installer message on how to run the test suite
turn on graphics test only if vcs present
Adding correct png for testPortrait
Adding image comparison code
Merge pull request #145 from doutriaux1/issue_113_add_test_suite

Issue 113 add test suite - LGTM, merging
changed alternate to alternate1 and ref3 to alternate2
Merge pull request #147 from gleckler1/issue1_improve_alternate_obs_naming

changed alternate to alternate1 and ref3 to alternate2 - Looks good to me