minor changes
Merge branch 'master' of github.com:thesteady/traffic_spy
updated Site class methods and tests
implemented versatile find
implemented versatile find and exists for Browser, Campaign, Event, OperationSystem, URLPath, CampaignEvent, Request & add completed testing
Added find_or_create_new method for models that have foreign keys in the requests table
modified RequestParser class, moving some tests to Request class
added tests to Request class to confirm parser objects are being stored correctly
successfully saving data from curl requests into development db all tests passing