Craft can be modded to have sell value.
add cancel button to researchInfo popup

- cancels out of adding a new project
- stops a project that is in progress and refunds any allocated scientists
Added polish translation (thx Krzysztof!)
Load options.cfg with -user parameter

options.cfg outside of default locations is being ignored (bug 157)

Ensure we set up data, user and config folders after creating default
options and before loading options from file and command line.
added aircraft's rent for a month.
added checking to MonthlyCostState: is aircraft researched?
fix: Not restored the button "NewBase" when you delete 8th base.
rare bug: If you have 8 bases and you delete one, the button "Build new base" will not restored.
put less-used cancel research button on the left
Uses facilities icons as shortcuts.
Quick jump to aircraft.
Show aircraft's name in the hangar.
optimization; comments.
nulled craft if getStatus() == "STR_OUT"
added getString("STR_CRAFT_")
Merge pull request #1 from redv/craftSellCost

added aircraft's rent for a month.
optimization; comments.
Unnecessary includes
Add sack button to soldier info screen

Currently a player must look at a soldier's stats, decide a sacking is
in order, click ok, click ok, click sell/sack, forget the name of the
soldier, go back to the soldier's list, back to sack/sell, can't find
the soldier, more clicks, remove soldier from craft, yet more clicks,
finally sack the soldier.
This extra button might lessen player stress.
restore items when research project is cancelled
some problems with transfering crafts