Overhauled the speeds system. Now when a talent or object grants +X% foo speed...

Overhauled the speeds system. Now when a talent or object grants +X% foo speed it means you can do X% more of action foo in the same time. So if you get a 100% combat speed increase you will attack twice as fast


git-svn-id: http://svn.net-core.org/repos/t-engine4@3144 51575b47-30f0-44d4-a5cc-537603b46e54