add RSRegularExpression
fix up RSURLRequest HTTP Method field memory leak bug
add cookie support to RSURLConnection
update RSHTTPCookieStorage to support get, set, remove cookie.
update RSNumber, with char, pointer, range, string value support.
fix up RSTimeZoneGetName memory leak bug
change RSStringCreateWithContentOfPath api, add encoding
fix up RSStringByReplacingOccurrencesOfString memory leak bug, add RSAutorelease to result.
add new API RSCoreFoundationCrash.
modified by xcode