update RSRegularExpression, use ICU instead
RSStringInlineBuffer add directUniCharBuffer, directCStringBuffer
update RSURLCreateStringByAddingPercentEscapes, _stringContainsCharacter
__RSURLConnectionCoreSetupCookieIfNecessary add debug mode
RSStringCreateWithBytesNoCopy change uint8_t * to void *
RSRenrenCore add to RSCFLibrary

RSCoreFoundation add RSURLExtension
runtime add log file save or not support
fix up temp file bug
RSString add RSStringURLEncode support