Make icon appear in main window.
Before that icon has been available only in Windows.
I don't know, works that code in Windows or not, so "#ifdef _WIN32"
portions in Engine/Game.cpp is still under question.
Merge pull request #801 from winterheart/icons-in-main-window

Make icon appear in main window.
Fixed cross-platform icon handling, don't wanna mix it up with mod resources.
- Added right-click to view soldier info from Craft Equip.
- Added left-click to view soldier info on Memorial.
- Fixed bravery in New Battle generated soldiers.
fix importing saves from 0.9

rename a variable, grenades will now be unprimed by default instead of all
being primed to go off immediately.
Fix