changed interface of SoldierInfoState
deleted advanced option; deleted double code;
If soldier on a mission, he cannot be sacked.
Remove craft from battlescape after exiting inventory
Fix crash on crewless craft inventory click

Replace crash with an error message.
Merge pull request #605 from cfailde/inv_crewless

Fix crash on crewless craft inventory click
Merge pull request #604 from cfailde/inv_crash

Remove craft from battlescape after exiting inventory
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
Merge branch 'master' of https://github.com/SupSuper/OpenXcom.git into interface4_grey_button
I changed my mind about "Build new base" button.