Merge pull request #22 from atlasapi/mbst-6741-post-people

Add AtlasWriteClient interface for writiing people to an Atlas
Merge pull request #14 from atlasapi/mbst-5881-post-atlas-topics

Add POSTing of topics to Topic client
Add updatePerson method to AtlasWriteClient for PUTting Person objects
Merge branch 'put-people' into stage

* put-people:
  Add updatePerson method to AtlasWriteClient for PUTting Person objects

Conflicts:
	src/main/java/org/atlasapi/client/GsonAtlasClient.java