initial changes to use jsonutils from openstack.common
Merge pull request #90 from chadlung/master

HTTP return status code should be 202 not 203 to register a worker
reworked code to use openstack.common jsonutils instead of json library throughout code base.  replaced all instances of from <module> import * with specific imports
Merge remote-tracking branch 'upstream/master'

Conflicts:
	meniscus/api/coordinator/registration_resources.py
Merge pull request #91 from stevendgonzales/master

implement openstack.common.jsonutils throught codebase,also corrected all import * in codebase