Add RTL support using bootstrap-rtl library

This patch will remove the logic from the template and add it only to
BootstrapThreeThemePlugin.inc.php , the logic there will handle if the
system is enabled to use cdn or not , and for that this patch is also
adding a copy of bootstrap-rtl.min.css , it is a Unlicensed Public Domain
script .

Added missing parameter `name` in `input tag`.

Correct spelling from 'Boostrap' to 'Bootstrap'