changes to allow mongo settings within local settings
upadted mongo connection to use connection url to allow authenticated connections
added port and used dict for url formatting
pep8 to force travis test
added cludless earth map and removed natural earth 2 - fixes #1113 [ci skip]
Merge pull request #1134 from modilabs/cloudless_earth

Added cludless earth map and removed natural earth 2 - fixes #1113 [ci skip]
rmoved people link for none staff/admin - fixes #1135
Merge pull request #1138 from modilabs/1135_remove_people_link

Removed people link for none staff/admin - fixes #1135
added cludless earth map and removed natural earth 2 - fixes #1113 [ci skip]
prettify [ci skip]
Merge pull request #1128 from modilabs/mongo_local_settings

Allow mongo db setting override from within local settings