Plus-Plus service backend integration
    
    * initial work on plus-plus
    
    * adding error handling with proper error displayed to client
    
    * Removing debug statements, adding try/except if the plus-plus service is unavailable
    
    * adding plus_plus tests
    
    * adding case where trying to plus_plus a user who doesnt exist
    
    * cleaning up mock request classes
    
    * seperating the status and update routes of plus_plus, adding more tests and made a bool helper function for updating karma