Added/changed:
- Lots of small optimizations (around 10-20% performance boost)[/*]
- Added an option to disable supply source problems notification
[/*]
Fixed:
- Incorrect family tree items in some cases of marrying a widow/widower[/*]
- Wrongful notification related to supply source list (when set to 0)[/*]
- Trade deal window didn't return to previous pause state on close[/*]
- Crash on bridge demolish in some cases[/*]
- Cancelling vehicle orders messed up the game and led to crashes[/*]
- Potentially fixed one of the causes for random crashes[/*]
