Use NS_INLINE for inline functions. Again, they are not currently being used, but this cuts down on preprocessor definitions.
Warn the developer if he tries to pass SVGKLoggingMixed to setLogLevel:.
Some more work on setRawError when invalid values are passed to it.
Get rid of the macro SVGKsvgStringDefaultContents, and replace the last mention of it with SVGKGetDefaultImageStringContents().
Adding more verbosity to SVGKit's setRawLevel for developers.