#1092 Renamed NLPSolver --> NlpSolver
#1092 Renamed QCQPSolver --> QcqpSolver
#786 Fixed unit test
#1092 Renamed SDPSolver --> SdpSolver
#1092 Renamed SDQPSolver --> SdqpSolver
#1092 Renamed SocpSolver --> SocpSolver
#1092 Renamed LPSolver --> LpSolver
#1092 Renamed QPSolver --> QpSolver