Fixed UFO destructor crash.
no more 91 psi guys showing up as "unknown"
fix for psi soldiers in info view
better radar line behaviours

save them, force them on when placing a base.
- Fixed psi stats showing wrong.
- Fixed missing "In Psionic Training".
- Changed Battlescape option speeds.
- Changed default scrolling behavior.
- Added button for Drag Scroll in Battlescape.
- Added button to Restore Defaults.
- Added key options.
Merge branch 'master' of https://github.com/SupSuper/OpenXcom