Merge pull request #171 from nZEDb/dev

Catch exceptions on tmdb, fix a query when running releases threaded.
Merge pull request #172 from nZEDb/dev

Dev
Merge pull request #173 from nZEDb/dev

Add the technical books cat, add the nZEDb amazon associate tag.
Merge pull request #174 from nZEDb/dev

Change metacritic/gamespot/ign to use the title.
Merge pull request #175 from nZEDb/dev

Add in the button for cover /list.
Merge pull request #177 from nZEDb/dev

Print the quantity of NZB files fixed.
Update tvrage.php

Alfy's improvement:
Only shows Tv Series that have releases attached to them. 

Does not affects the master tvrage list on the back end. Is purely an sql filter blocking empty tvseries on page view.
Merge pull request #178 from sinfuljosh/patch-1

Update tvrage.php
Merge pull request #179 from nZEDb/master

Updating dev.