updated documentation

Merge branch 'master' of https://github.com/numinix/css_js_loader

- updated jquery.blockUI/2.66/blockUI.js
- updated jquery/1.10.2/jquery.js
- added cdn example to loader_sample.php.sample
- improved html output in html_header.php

- bug fix in installer;
upgraded minify to v1.7
Merge branch 'master' of https://github.com/numinix/css_js_loader
renamed last version to 3.0.0