#959: Add link to Administration page in new registration email
Merge pull request #103 from Quy/959

#959: Add link to Administration page in new registration email
Avoid double redirect when no new posts are found
Remove unnecessary whitespace in viewtopic.php
Merge pull request #106 from JosJuice/patch-1

Avoid double redirect when no new posts are found
Omit p=1 from pagination. Thanks Visman.
Merge pull request #107 from Quy/pagination

Omit p=1 from pagination. Thanks Visman.
#963: Add rel=“next” and rel=“prev”
Merge pull request #108 from Quy/relprevnext

#963: Add rel=“next” and rel=“prev”
#963: Add rel="canonical".
Merge pull request #109 from Quy/relcanonical

#963: Add rel="canonical".
#935: Add language string.
#969: Update url_valid to support new TLDs.
#935: Add promote link to topic page.
Merge pull request #112 from Quy/969-gtld

#969: Update url_valid to support new TLDs.
Merge pull request #113 from Quy/935-promote-viewtopic

#935: Add promote link to topic page.
Make it clearer that other users can see the email address.
#976: Invalidate updated cache files from PHP's Opcache

Patch provided by Pierre, thanks!
Merge pull request #115 from adaur/ticket976

#976: Invalidate updated cache files from PHP's Opcache