xF1 Add-on Twitter Authentication v1

This addon has been very much over-due for myself, I started working on this back when XenForo was released and never got around to releasing it.

Install:

1. Download the attached zip
2. Upload the upload folder to your forum
3. Import the XML file
4. Edit login_bar_form, After
   HTML:
   <xen:if is="{$xenOptions.facebookAppId}"><xen:set var="$eAuth">1</xen:set></xen:if>
   add
   HTML:
   <xen:if is="{$xenOptions.c2Twitter_consumerKey}"><xen:set var="$eAuth">1</xen:set></xen:if>
   After
   HTML:
   <xen:if is="{$xenOptions.facebookAppId}">
   <li><a href="{xen:link register/facebook, '', 'reg=1'}" class="fbLogin"><span>{xenhrase login_with_facebook}</span></a></li>
   </xen:if>
   add
   HTML:
   <xen:if is="{$xenOptions.c2Twitter_consumerKey}">
   <li><a href="{xen:link register/twitter, '', 'reg=1'}" class="twLogin"><img src="http://a0.twimg.com/images/dev/buttons/sign-in-with-twitter-d.png" title="{xenhrase sign_up_with_twitter}" /></a></li>
   </xen:if>
5. Go to http://dev.twitter.com/apps and create an application
6. Under twitter in xenforo options, copy over the Consumer Key and secret from the application you created in step 5