Joinable races populate list. Hard coded http authorization
Clicking on joinable race will go to the race view activity and pass it the race name and id
Joined races are now listed for user, currently hard coded for littlebass09
Added TODO to joinable races
Added search button for searching races. Only loads races after a search, does not load all races before
Added user login based off spring security users
Added logging out and remembering credentials
Icon images
Merge branch 'Brian'