Merged dalerank/caesaria into master
last put include steam inside caesaria_use_steam clause
Merged in ramMASTER/caesaria-1 (pull request #83)

other put include steam inside caesaria_use_steam clause
fix #307. Add app event focus enter/lost.
fix #309. Improved ship bridge draw and init options.
Add infobox for barracks. Improved infobox for fort.
add varieties of food on population advisor screen.
migration now check incoming\leaving citizen.
add thinks for romesoldier/wallguard in battle
Improved calculate peace rating, add influence rome/barbarian threat
Improved localizaton
Merge branch 'master' into windows-build