- Implemented a vast number of renames and comment clarifications 
        suggested during API review.
        
        JSInternalString -> JSString
        JS*Make -> JSValueMake*, JSObjectMake*
        JSTypeCode -> JSType
        JSValueIsInstanceOf -> JSValueIsInstanceOfConstructor (reads strangely well in client code)
        JSGC*Protect -> JSValue*Protect
        JS*Callback -> JSObject*Callback
        JSGetPropertyListCallback -> JSObjectAddPropertiesToListCallback
        JSPropertyEnumeratorGetNext -> JSPropertyEnumeratorGetNextName
        JSString* -> 
            JSStringCreateWithUTF8CString, JSStringGetUTF8CString,
            JSStringGetMaximumUTF8CStringSize JSStringIsEqualToUTF8CString, 
            JSStringCreateWithCFString, JSStringCopyCFString, JSStringCreateWithCharacters.
        
        - Changed functions taking a JSValue out arg and returning a bool indicating
        whether it was set to simply return a JSValue or NULL.
        
        - Removed JSStringGetCharacters because it's more documentation than code,
        and it's just a glorified memcpy built on existing API functionality.
        
        - Moved standard library includes into the headers that actually require them.
        
        - Standardized use of the phrase "Create Rule."
        
        - Removed JSLock from make functions that don't allocate.
        
        - Added exception handling to JSValueToBoolean, since we now allow
        callback objects to throw exceptions upon converting to boolean.
        
        - Renamed JSGCCollect to JSGarbageCollect.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@15376 268f45cc-cd09-0410-ab3c-d52691b4dbfc