vscript additions and fixes:

baseentity_shared.cpp
baseentity.cpp
c_baseentity.h
c_baseentity.cpp
c_world.h
   - Fixed critical ScriptSetContextThink bugs
   - Added C_BaseEntity::SetContextThink (ScriptSetContextThink)
   - Added C_BaseEntity::SetSize
   - Added C_BaseEntity::SetModel
   - Added C_BaseEntity::Destroy

baseentity.h
baseentity.cpp
   - Removed duplicate functions ScriptSetSize and ScriptUtilRemove

player.cpp
   - Moved player script instance registration before player_spawn event

vscript_server.cpp
   - Added CEntities::FindByClassNearestFacing

vscript_funcs_shared.cpp
   - Added GetFrameCount
   - Added IntervalPerTick

vscript_singletons.cpp
   - Better game event descriptors for CScriptGameEventListener
   - Added ::effects (CEffectsScriptHelper)
   - Added ::Convars (CScriptConvarAccessor)

vscript_shared.cpp
   - Fixed clientside entity printing in script VM

mapbase_con_groups.h
mapbase_con_groups.cpp
   - Improved performance by changing string comparisons to direct array access

vscript_bindings_base.h
vscript_bindings_base.cpp
   - Added CScriptKeyValues::SubKeysToTable

vscript_bindings_math.cpp
   - Added ::SimpleSplineRemapVal
   - Added ::SimpleSplineRemapValClamped
   - Added ::Bias
   - Added ::Gain
   - Added ::SmoothCurve
   - Added ::SmoothCurve_Tweak
   - Added ::ExponentialDecay

vscript_squirrel.nut
   - Added ::Lerp
   - Added ::FLerp
   - Added ::SimpleSpline

vscript_squirrel.cpp
   - Added Vector::_unm
   - Added Vector::Set
   - Added Vector::Add
   - Added Vector::Subtract
   - Added Vector::Multiply
   - Added Vector::Divide
   - Added Vector::DistTo
   - Added Vector::DistToSqr
   - Added Vector::IsEqualTo
   - Added Vector::WithinAABox
   - Added Vector::FromKVString
   - Changed vector print syntax

sp/src/vscript/vscript_squirrel.nut

@@ -65,6 +65,22 @@ function AngleDistance( next, cur )
 	return delta
 }
 
+function FLerp( f1, f2, i1, i2, x )
+{
+	return f1+(f2-f1)*(x-i1)/(i2-i1);
+}
+
+function Lerp( f, A, B )
+{
+	return A + ( B - A ) * f
+}
+
+function SimpleSpline( f )
+{
+	local ff = f * f;
+	return 3.0 * ff - 2.0 * ff * f;
+}
+
 function printl( text )
 {
 	return ::print(text + "\n");