General improvements to handling media content.  Added ability to configure where media lives.
Merge pull request #178 from pencilblue/story/GENERAL_IMPROVEMENTS

General improvements to handling media content.  Added ability to config...
Fixes #177.  Allows tags to contain align attribute
Merge pull request #180 from pencilblue/issue/PB177

Fixes #177.  Allows tags to contain align attribute
Merge branch 'master' into PB105