Merge pull request #71 from atlasapi/mbst-5686-ingest-pa-channel-logos

Refactor of channel get methods as part of Images work on channels.
Upgraded Apache httpclient from 4.1.1 to 4.2.2
Downgraded httpclient to 4.2, due to Consts missing class
reverted version of httpclient, as changing it, causes other dependencies of it to break
Up verson of Apache HttpClient from 4.1.1 to 4.2.2
Merge branch 'update-apache-http-client' into stage