Merge pull request #355 from paczian/master

added oauth2, added register2
field name changes
use solr for m5nr api
Merge branch 'develop' of git@github.com:MG-RAST/MG-RAST into develop
Merge pull request #356 from teharrison/develop

use solr with m5nr
m5nr api: update config variables, update usage
Merge pull request #357 from teharrison/develop

m5nr api: update config variables, update usage