changed interface of SoldierInfoState
deleted advanced option; deleted double code;
If soldier on a mission, he cannot be sacked.
Replaced Infobox with ErrorMessage
Fixed funny exploit, which allowed change the soldier's armor even if soldier on mission and teleported soldiers back to base.
Merge pull request #608 from redv/fix_distant_armor

Fix: teleportation of soldiers back to base.
Merge pull request #561 from redv/interface3_sack

Improvement the Sack button