fix js links in map explore page
Uncomment the notifications in the travis configuration file
Create issue_handling
save the map before triggering the map_change signal
update documents extent on map change
changed class name to avoid conflicts with bootstrap
fixed main nav styles, added bold on link hover
edited header styles
edited header styles
edited section title styles, increased space between links in the main nav
styled search box
edited header layout
styled sidebar list, css edits
edited banner layout and styles
Merge branch 'dev' of github.com:eldarion/geonode into dev

Conflicts:
	geonode/layers/templates/layers/_layer_list_item.html
	geonode/maps/templates/maps/_map_list_item.html
	geonode/people/templates/people/_profile_about_item.html
	geonode/static/geonode/css/base.css
	geonode/templates/base_geonode.html
Some fixup after merging eldarion dev
Fix download link in map list
addig docs/_build to .gitignore
Initial add of Multi-tenancy docs from @matthewhanson
Change virtualenv instructions in README