Fixed 1.6.1's movement speed

git-svn-id: http://mc-server.googlecode.com/svn/trunk@1649 0a769ca7-a7f5-676a-18bf-c427514a06d6
Unmounting vehicles implemented in the 1.6.1 way

git-svn-id: http://mc-server.googlecode.com/svn/trunk@1650 0a769ca7-a7f5-676a-18bf-c427514a06d6