added $mainpre and $mainpost in engine class
updated spec file to fix block.class.php
broke up load() function into load() load_file() and load_file_exact() in engine class
$name is optional in css() and js() functions of engine class
auto load jquery when loading bootstrap
added <html> tag and removed <meta charset> tag
always add <title> tag to prevent odd css height issues
fixed <script> and <style> tags in render_head() function of engine class
added parseTags() function to engine class
only handles {css} and {js} tags so far