#0.04. Updates and fixes

Updates:
-Added random start time of day
-Added random start weather
-Added new mission params for weather, time of day, smoke screen amount,
timetofinish, robber speed & distance limit and can shoot backwards
-More detailed descriptions of racemodes
-Start info for drivers about reset
-Start info for gunners about disabled guns

Bugfixes:
-Fixed commander MP param sync causing less commander actions to display
for clients
-Fixed smokescreen not working
-Fixed police siren not working