DDF-769, DDF-785 Fixed http proxy, added imagery configuration to standard ui

- fixed issue with http proxy not allowing more than a single
- fixed issue with http proxy returning 404 for all requests
- added configuration for all imagery and terrain providers
- updated ui to access new imagery/terrain configuration
- fixed properties.js to accept new parameters without needing them hardcoded in the ui
DDF-771: Changed metacard list view to compare number of results returned to max results allowed to determine count message
DDF-771: Fixed test data so that casper tests run correctly
DDF-771: Removed stray comment
DDF-328 added usng/mgrs support to the standard ui
DDF-328 fixed a few display bugs
DDF-802 updated the search ui to use the latest bootstrap
DDF-675: Added support for changes to notifications/activities CometD endpoint to match standardized messaging API
DDF-783 added initial gazetteer support to the search ui

- added geocoder to cesium
- added geocoder endpoint to ddf
- added geonames client to ddf
DDF-802 made the look of the ui more flat
DDF-820: added check for userId being null, if so use the serverSessionId