upgrade to bootstrap 3; upgrade to smarty 2.6.28; upgrade to newest vers...

* upgrade to bootstrap 3
* upgrade to smarty 2.6.28
* upgrade to newest version of lib_filter
* ensure all templates use abs_root_url
* allow for trailing slashes in URLS
* move JS back in to inc_head to $(document).ready() will work
* move navigation header in to inc_head_navi.txt because bootstrap eye-bleeding...