Modify Links model to generate GetCapabilities links for WMS, WFS, WCS services

Update template full_metadata.xml for ISO XML to include these links
Restored 'OWS' link, but with added params for GetCapabilities response
document type (subtype) search
added doc file types
added archive facet
PEP8 Fixes for E128
small PEP8 fix
final pep8 fixes
add group email, hide manage commands, group logo css
revert css change b/c of less issues
PEP8 fix
fixed whitespace
Merge pull request #1648 from state-hiu/groups_fix

Group Enhancements (Email, Tags, Fixes)
added error messages.  fixed title
suggested changes made
group activitu feed, members layout, help_text, fixes
PEP8 fixes
Revert to bare WMS, WFS, WCS URLs in base_link, update gmd:protocol and other element values in ISO template
Merge branch 'master' of https://github.com/GeoNode/geonode
Merge pull request #1633 from mwengren/link_fix_pr

Modify Links model to generate GetCapabilities links for WMS, WFS, WCS