Update joomla.rb

Added more matches for Joomla versions 2.5.x
Update joomla.rb

Added 3.0.x and 3.1.x versions.
Update dublin_core.rb
Fixed a 'crucial typo' in wordpress.rb
Update pligg-cms.rb
Update ATutor.rb
Update AContent.rb
Update CouchPotato.rb
Fixed bugs on OS X 10.9 (ruby 2.0)
add two new detections of spip
add signatures for wordpress up to version 3.8
fix mixing up of wordpress 8.1 with 8
add drupal 6
add drupal 7
Merge pull request #111 from pvdl/master

Added latest Joomla versions.
Merge pull request #119 from maggick/patch-1

add two new detections of spip
Merge pull request #120 from droope/wordpress

add signatures for wordpress up to version 3.8
Merge pull request #121 from droope/drupal-pull

Drupal pull
Merge pull request #117 from dengjw/master

Fixed bugs on OS X 10.9 (ruby 2.0)
Create verify-nikto

Shell script to verify Nikto logs using WhatWeb to separate false positives / true positives