fixed all easy to fix SB compiler warnings (all but undeclared selector and deprecated warnings)
suppress "undeclared selector" warnings for lib classes
fix "undeclared selector" warnings
suppress deprecation warnings for loadNibNamed: methods
fix "ld: warning: directory not found for option" due to extraneous framework search paths
Merge pull request #255 from KoboldKit/develop

Fixed (or suppressed) all compiler warnings