New docs URL, America Decoded link
Fix another documentation URL
Include port number in term URLs

Closes #530.
Make Disqus call SSL-neutral

Stop specifying the protocol, so that HTTP or HTTPS will be used, whichever has been requested.
Make Facebook social button protocol-neutral

Remote "http" from the script's `src` attribute, so that it'll work under HTTPS and HTTP.
Fixing typo.
Merge branch 'master' into USLM-export