Fixed: Renamed CPCoder method to match language

Previously CPCoder had a method named "encodeValueOfObjCType" which is a misnomer.

This commit renames the method to "encodeValueOfObjJType."

Foundation/CPCoder.j

@@ -53,7 +53,7 @@
     @param aType the structure or object type
     @param anObject the object to be encoded
 */
-- (void)encodeValueOfObjCType:(CPString)aType at:(id)anObject
+- (void)encodeValueOfObjJType:(CPString)aType at:(id)anObject
 {
    _CPRaiseInvalidAbstractInvocation(self, _cmd);
 }