bump 0.6.4

 CasperJS Changelog
 ==================
 
+2012-02-09, v0.6.4
+------------------
+
+- fixed `casperjs` command wasn't passing phantomjs native option in the correct order, resulting them not being taken into account by phantomjs engine:
+  - fixed [#49](https://github.com/n1k0/casperjs/issues/49) - `casperjs` is not sending `--ssl-ignore-errors`
+  - fixed [#50](https://github.com/n1k0/casperjs/issues/50) - Cookies not being set when passing `--cookies-file` option
+- fixed Python3 compatibility of the `casperjs` executable
+
 2012-02-05, v0.6.3
 ------------------
 

-Subproject commit 2b39c2fed23b8179c734c42248f0706ddb3fba54
+Subproject commit 0f3b4b30a0f87a9dca740f887cb4e60a6a96e409

 {
   "name": "casperjs",
   "description": "Navigation scripting & testing utility for PhantomJS",
-  "version": "0.6.3",
+  "version": "0.6.4",
   "keywords": [
     "phantomjs",
     "javascript"