- closes #116
 - closes #85

- restrictions are zone-dependent
- large cities can have more active construction sites than smaller ones

- enables partial compatibility with 'Ultimate Eyecandy' and 'Time Warp'
- simulation is paused automatically when warping via these mods
- time warp is possible only while simulation is paused
- on resuming, the time is reset again to the last known Real Time value

Improved Korean Language

Improved Korean Langugae