+0.90.0
+ * changed "this" to "self" but recognize "this" as well
+ * warn if "new" is not public
+ * check symbols/arguments/signals for duplicates
+
+0.0.4
+ * you can have tokens inside check statements
+ * avoid warnings when no overrides, signals and arguments
+
0.0.3
* "type", "check", "first", "last" and "null" no longer reserved
words in method prototypes