Added cases for func_physbox_multiplayer

Used in a few counter-strike maps
Fix hammer error.
Fix pendboard error while loading in.
Fix redeem brain convar not syncing.

The convar is replicated so this shouldn't be needed, but whatever.
Fix dropped weapons + ammo counting towards logic_pickups.
Merge pull request #45 from BClark09/master

Added cases for func_physbox_multiplayer
Added new entity info_custommessage

Allows map editors to concatenate a sequence of strings and then
displays it using one of the pre-existing messaging entities, useful for
A = B/C messages.

Keys:
displayentity(targetname) : The entity used to display the message, can
be a targetname of a class game_text, point_worldhint or point_zsmessage
zsmessagemode(choices) : If using a point_zsmessage, select the method
of display with this key
"0"  : "Centred HUD Message"
"1"  : "Corner Human HUD Message"
"2"  : "Corner Zombie HUD Message"
string01(string) : Part 01 of the full string
string##(string) : Part ## of the full string, there can be up to 99 of
these.

Inputs:
displaystrings(string): Concatenates and displays the full string using
the attached entity
setstring##(string) : Sets part ## of the full string, there can be up
to 99 of these.

Outputs:
OnDisplayed : Called when the message has successfully displayed.
Added two entities to the FGD

+info_custommessage
+weapon_zs_butcherknife
Merge pull request #49 from BClark09/master

Added new entity info_custommessage and updated FGD
Fix 2 pulse ammo costing same as 5 pulse ammo.

Pistol ammo from store price 6 -> 7.
Increased general movement speed in Zombie Escape

Increased speed for bot Zombies and Humans with both weapons by a flat 30 so that more ZE maps with jumps and timed retreats can be included.
Merge pull request #51 from BClark09/patch-1

Increased general movement speed in Zombie Escape
Fix typo causing errors when Spanish users switch class.
Remove useless SetTeamID functions.
Fixed typo in logic_winlose for endcamerapos

setendcamerapos -> endcamerapos
Added cleanupfilter for spawns in Zombie Escape

Some maps move the spawns for each level.
Fixed fists returning to an incorrect move speed

Also fixed fists not having a faster speed for Zombie Escape and not
switching to that speed when initially switching to that weapon.
Added keys and new inputs to logic_winlose in FGD
Merge pull request #57 from BClark09/master

4 commits relating to mapping entities or fists
Added logic_stripweapons entity

Specific entity to remove a weapon that targets a player activator
holds:

--keys--
keepfists: If yes, the stripallweapons input strips all weapons but
fists

--Inputs--
stripweapon: Strips a single weapon as mentioned in arguments
stripallweapons: Strips all weapons the activator has
setkeepfists: If 1 the stripallweapons inputs strip all weapons but
fists