Merge pull request #80 from gwu-libraries/inventory-pagination-tests

Inventory pagination tests
Tweaked new pagination tests to match new Bag model methods. #70
Minor tweaks in the travis config file and added temporary DB credentials for testing purpose
Corrected command to copy local_settings template file
Added app name to the test command, and email notifications
Adjusted API resources to allow readonly access without API keys.  Edited Bag Resource to pass dictionary of payload instead of raw string to make it easier for AJAX calls to parse it. Refers to issue #75
Merge branch 'master' of https://github.com/gwu-libraries/inventory
Added button to apply search filter
Merge branch 'master' into inventory-bag-listings-search
Removed unwanted url mapping for ajax call
Added method list_payload_str for the Bag model
Removed unwanted method get_bag_file, which was initially used by the AJAX call
Removed the AJAX call for autocomplete and added Javascript code to filter files on front end