Goldpit rc4

Some minor pack changes
Added stairs near bot spawn to help spies and pyros

Added spawnbot_forward. This spawnbot will spawn bots at the most recently captured gate
Fixed displacements

Fixed a strange case of a missing chunk of func_respawnroom at the bot main spawn area
Adjusted nav mesh to fix a couple of poor connections

Update by sntr
Goldpit man appreciates it.

Cubemap

Added a full ammo kit at B gate

Fixed bots attacking from spawn on left dropdown

Fixed sentrybuster not being stunned in advanced mission
Fixed Rescue ranger's penetration upgrade preventing it from being shot at the frontline
Improved clipping

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b13_missionupdate2
Updated Clickin's expert mission

- Updated Clickin's Expert mission

Map changes:
Removed displacement seem
Made the lighting more realistic in one particular area

Mission changes:
Wave 2: reduced the rate of supports
Wave 6: reduced the boss health to 55000 from 70000