SupSuper/OpenXcom — pull request #241 by xanscale (2012-12-16 15:07:42+00:00)
Title: code clean to remove some warning

this commit remove this warning
In file included from Ruleset/RuleAlienMission.cpp:19:0:
Ruleset/RuleAlienMission.h:84:24: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
Ruleset/RuleAlienMission.cpp:143:41: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]

In file included from Ruleset/Ruleset.cpp:52:0:
Ruleset/RuleAlienMission.h:84:24: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]

In file included from Savegame/AlienMission.cpp:27:0:
Savegame/../Ruleset/RuleAlienMission.h:84:24: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]

also i add Wextra to makefile to enable all warning