Changed sources/list request to return time_type='local' for Flickr again.  This will temporarily break display of Flickr in the grapher until the grapher is able to successfully display local time photo channels.
Added time type to AbstractPhotoFacetVO which defaults to 'gmt' and is set to 'local' in the constructor of local time PhotoFacetVO's such as FlickrPhotoFacetVO.java.  Modified PhotoItem to include a time_type field which is populated from the timeType value from each AbstractPhotoFacetVO object.
Merge branch 'development' of https://github.com/fluxtream/fluxtream-app into upstream_development