Merge pull request #11 from jrfnl/master

Dotted the i's and crossed the t's for the v3.2 release
Minor tweaks

* Make upgrade validation secure (using filters was opening it up to security risks)
* Lower curl timeouts for faster file size retrieval / errorring out
* Only add js localization if we actually use js
Prevent double adding of styles if/when main function is called several times