koth_streetblock a6

-added signs to show if the gate is open or closed
-sealed some leaks (I never knew there were that many leaks)

-added new gates at the end of both of the tunnels:
If the attacking team captures the point, then their gate closes and the defending team's gate opens.
-added lights under the bridge

-fixed leak
-fixed fullbright problem

-made the map wider

-added a side path to easier get up the high ground above the point

-fixed broken sightline
-fixed control point
-fixed spawnpoint at control point