MAI test scenarios: fight_on_without_leader -> defeat_condition

Necessary due to a recent change how the victory conditions are
evaluated.
add config attribute value tests, put them in project files also.
Merge branch 'master' of git://github.com/wesnoth/wesnoth
Catch config::error exception which could be thrown by parser.

I'm not sure if this is necessary as it is not reported, but
worst case is that not doing this could cause malformed
scenario files in the editor folder to crash wesnoth while
browsing in mp_create.
Fix typos in comment
Fixed Li'sar not carrying over correctly
refactor map_location.hpp to drop util.hpp include
Merge branch 'master' of git://github.com/wesnoth/wesnoth