ANN: ClojureScript 0.0-2322, Safari Hashing Fix

[David Nolen]

ClojureScript, the Clojure compiler that emits JavaScript source code.

README and source code: https://github.com/clojure/clojurescript

New release version: 0.0-2322

Leiningen dependency information:

[org.clojure/clojurescript "0.0-2322"]

The primary reason for this release is a critical hashing bug
in Safari clients that surfaced due to the Murmur3 work.

### Fixes
* CLJS-839: Mobile Safari Math.imul issue
* CLJS-845: incorrect behavior of `sequence` when given multiple collections
* count check in equiv-sequential if both arguments are ICounted
* only keep the param names when storing :method-params instead of the
entire param AST
* preserve var metadata for deftype* and defrecord*
* preserve var metadata when creating deftype/record factory fns
* CLJS-831: Extending EventType to js/Element breaks Nashorn