#1138 Removed friend references to non-existant classes
#1138 Renamed *IntegratorInternal --> *Integrator
#1138 Renamed NLPImplicitInternal --> NlpToImplicit
#1138 Renamed NewtonImplicitInternal --> Newton
#1138 Renamed NLPQPInternal --> NlpToQp
#1138 Renamed NlpToQp --> QpToNlp
#1138 Renamed NlpToImplicit --> ImplicitToNlp
#1138 Renamed QCQPQPInternal --> QpToQcqp
#1138 Renamed QPLPInternal --> LpToQp
#1138 Renamed QPStabilizer --> StabilizedQpToQp
#1138 Renamed SCPgenInternal --> Scpgen
#1138 Renamed SDPSDQPInternal --> SdqpToSdp
#1138 Renamed SDPSOCPInternal --> SocpToSdp
#1138 Renamed SimpleHomotopyNLPInternal --> SimpleHomotopyNlp
#1138 Renamed SOCPQCQPInternal --> QcqpToSocp
#1138 Renamed SQPInternal --> Sqpmethod
#1138 Renamed SymbolicQRInternal --> SymbolicQr