Fix bootstrap js loading in Joomla 3.1.4

In Joomla 314, they have updated and fixed the bootstrap version.

This fix checks for J3.1.4 and reverts to the Joomla version if we are
there.
Copy bootstrap files with J314 fixes
Copy bootstrap files from J314 for T3 admin

I did this commit separately because there are separate bootstrap
instances for T3 admin which were the old J3.0 versions 2.3.1.

I am assuming that admin was 2.3.1 because the Admin tooltips didn't
work in 2.3.2, so they should now work with these versions.