Kronos skill changes
Mordu's Legion & Prospect ships

+ Fixed incorrect grouping for some pirate and ORE ships
New Mordu's Legion & ORE ships
Kronos skill changes
Skill count update

One day this won't need updating. :x
Updated PHP requirements

PHP 5.2 is no longer supported. Users should upgrade to at least 5.4 and
update ECS.
First Kronos release

Let's hope I caught everything first time!