FGDC Topic Category extraction
Assigns TopicCategory to Layer using extracted metadata.
Added category_list to advanced search context for category filter
Added category filter
Added support for capturing multiple keywords from FGDC metadata.
Fixed merge conflict
Merge branch 'master' of github.com:GeoNode/geonode
Added Elliot Bradbury to AUTHORS

He added ISO topics to search form
Fixed the migration's documentation.
Merge branch 'master' of github.com:GeoNode/geonode
Now title for documents can use lowercase chars. Something from css was conflicting with the field id.
Added pyproj instructions when using pip 1.5
Added pyproj exception to paver setup
Add details to fix pyproj install on Pip 1.5

Added details to troubleshoot pyproj when installing using pip 1.5
Merge pull request #1333 from mikefedak/patch-1

Add details to fix pyproj install on Pip 1.5
It is not required to create a new folder and it is actually not used after
Added missing inbox link from admin dropdown in response to issue 1267
Fixed viewby padding and Search menu's content-wrap padding in base.css
Modified the base.less file
Merge pull request #1335 from state-hiu/master

Fixes #1267