Server: streamline gamerule progs interface

* fix dirFromTarget() logic

last weeks work, read plan

* spawn/speed optimisation for NSPhysicsEntity

Merge pull request #8 from ewewukek/master

env_sprite: Update QUAKED comment to mention 'material' key.

Menu-FN: when 'rate' is ridiculously low, set it to the engine defaul…

Menu-FN: Only run the drawfill() command when the engine requests an …

NSMonster: change error() to NSError() to aid debugging.

Menu-FN: Init strings after game library init.

NSNavAI: set _m_flRouteGiveUp to something valid, and change our path…

func_tracktrain: if no globalname is defined, and/or relation target …

VGUI3DView: only setproperty VF_DRAWWORLD when MENU is not defined.

make_radiantshader.sh: mkdir if scripts doesn't exist

make_radiantshader.sh: strip non program portion of a .mat if available

add make_radiantshader.sh

Bot_ExistsInServer: ddecolorize names before comparing.

Menu-FN: Call cfg_save at certain points in case cfg_auto_save isn'…

env_muzzleflash: set it as MASK_GLOWS instead of MASK_ENGINE to ensur…

infodecal: fix client-side ones always rendering.

NSView: fix some warnings.

NSView: when we switch between dead/alive state, reset damage display…

monstermaker: Prevent monster DropToFloor().

trigger_transition: filter out "players" in all transitioning modes.

SV_PerformLoad: Saner check for if we can call Destroy()...

Server: show 'entered game' message once and only in MP.

Big commit, work over various triggers. Clean up debug prints and make

Client View: Ensure modelindex of the viewmodels get set to 0 when

View: helper function to prepare for weapon changes on the client-side

Server: add Skill_Init inside init()