lima/load g4 geom 2 close g4 geom
The first commit fixes annoying error messages which interrupts the ccmake flow of configure+generate to display mislabeled status messages. Now only error messages will interrupt that flow.
Second commit is a proposal to just rename G4GeoManager::LoadG4Geometry(G4VPhysicalVolume* world) as CloseG4Geometry(...). I think this makes it more clear that it closes the geometry, and at the same time, distinguishes itself from the LoadG4Geometry(string* filename) function which parses the .gdml file.