Bug 1043114 - Part 1: Unify add/removeHostRoute and add/removeHostRouteWithResolve (idl). f=vchang, r=edgar
Bug 1043114 - Part 2: Unify add/removeHostRoute and add/removeHostRouteWithResolve (NetworkManager). r=edgar
Bug 1043114 - Part 3.1: Unify add/removeHostRoute and add/removeHostRouteWithResolve (NetworkService). r=edgar
Bug 1043114 - Part 3.2: Remove unused NetworkParams and refine comments. r=edgar, r=smaug
Bug 1043114 - Part 4: Unify add/removeHostRoute and add/removeHostRouteWithResolve (NetworkUtils). r=edgar