NicolasPetton/amber — pull request #202 by herby (2012-05-11 13:58:11+00:00)
Title: Fixes GH-200

Methods made non-enumerable and non-writable (but configurable), in par with methods in ES6.
Things in fn.prototype are non-enumerable (methods, inheritedMethods, ...), so they do not appear in instance keys.
identityHash is non-enumerable, non-configurable and non-writable (once set, cannot change, non-visible among keys).

(should fix jQuery css: :-) )