mouse-right-click will now make the player either:

- run to the clicked spot if a path can be found
- run in the direct if no path is found
- move one turn in the direction if hostiles are present or if the clicked spot is adjacent

summary: can be played with the mouse


git-svn-id: http://svn.net-core.org/repos/t-engine4@593 51575b47-30f0-44d4-a5cc-537603b46e54