Rolled by the changes that generates "===" and "!==" as a translation
for "==" and "!=". This is not backwards compatible, and causes all
sorts of problems due to the fact that "undefined == null" and
"undefined !== null" are both true.
Add the equals(Object) method to all stjs base classes that do not
override it. This allows .equals() in Java to be translated to .equals()
in JavaScript without causing trouble.