Merge remote-tracking branch 'upstream/master'
Merge pull request #88 from aelkikhia/master

added unit test for coordinator
Merge remote-tracking branch 'upstream/master'
pep8 fixes
Merge pull request #89 from stevendgonzales/master

pep8 Fixes
HTTP return status code should be 202 not 203 to register a worker
Merge pull request #90 from chadlung/master

HTTP return status code should be 202 not 203 to register a worker