Fix for river water shader

Added new temp HQ model and slightly larger build radius.
Added river to map

-HMMVW set to not spawn with any ammo points
-Fixed replication issue where powerplants would not spawn smokestack smoke for clients controlling a commander far away.
-Concrete buildings now play bullet reaction effects
-Fixed replication issue with turret where other clients would see it facing the wrong direction.
-Fixed bug with ability buttons (UAV, artillery) where low power icon would not show (e.g. if you leave commander view and go back)
-Fixed a similar bug with vehicle (and helicopter) construction progress (e.g. radial progress would not should if you leave commander view and go back)
-Moved ability button low power indicator for better visibility
-Fixed replication issue where turret would only play muzzle flash and firing sounds on the first shot of a volley.
-Fixed issue where muzzle flash would originate from beginning of the barrel

-Canceling construction removes the "construction smoke"
-Turret ignores objects unless they are possessed pawns (prevents them from shooting deployed UAV actor)
-Low power announcement now discerns whether you have base defenses or not
-Commander Cam ignores deployed abilities (UAV, artillery) when looking buildable space overlappers
-Hopefully fixes bugged UAV button.. Denominator of percent needs to replicated. If you are not on server during Building's begin play, you never know the denominator.
-Base spawns use "HAB Spawn" icon and settings (no ammo refill)
-Added (temporary) simple collisions to cliff assets and added more shrubs and trees

-Ammo crates removed from base map
-Barracks automatically spawns ammo crate
-Vehicle Factories and Helipads spawn repair stations
-CAS Helicopter missiles have explosion effects now
-CAS Helicopter price and construction time increased
-Transport Helicopter price decreased
-Turret is very accurate and buffed now. Price increased.

-Added map border and killzone to prevent helicopters from flying under map
-Buffed range, damage, and ROF of turret, and added offset for helicopters

-Added helipad model updates and fixed preview (green/red) building
-Fixed commander movement so you don't need to look top-down to get max speed. Commander camera more responsive now
-Added H for home button for commander
-Left/right clicking will regain commander ability to rotate camera after using (~) console

Attempted fix: if commander uses ~ console they lose the ability to rotate the camera. This hack allows left/right click to regain focus (hopefully)

Attempted fix for UH60 CAS no-spawning bug

Another attempt to get humvee spawning working