Minor changes, Change Weapon is no longer usable on another non NPC entity.

Added Harpoon (from Lost Coast) and Annabelle to the "Change Weapon" property
You can no longer use Change Weapon property on some non NPC entities (npc_furniture, monster_generic)

Renamed "Permit Weapon Pickup" to "Permit Weapon Upgrade Pickup" to better reflect what it does
Added "Make More/Less Aggressive" option to Striders
Removed "Copy Model to Clipboard" option, its more of an option for Easy Entity Inspector mod

Make Friendly/Hostile option will no longer appear on unsupported NPCs
* Addon authors can use ExtProp_AddFriendly/ExtProp_AddHostile/ExtProp_AddMonster( class ) to enable compatibility with this mod
* Make friendly/hostile option now properly affects more NPCs, such as Poison Headcrabs, Stalkers and Antlion Workers
* Fixed console error spam about squads when making NPCs hostile or friendly
* Fixed bugs where friendly NPCs would attack each other, etc

Removed debug output from Make Friendly option

* Some changes and fixes to "Make Friendly" option
* Added "Copy Model to Clipboard" option, only visible when "developer" convar is set to 1
* Added a more visible warning to "Change Weapon" menu

* Fixed an exploit that allowed users to give NPCs restricted to them weapons.

* Added some new options ( Like "Enable Radar" on Jalopy )
* Improved a lot of the options
* Some options will be hidden when they are unusable ( "Close" won't appear on closed doors, etc )
* Improved "Make Friendly" and "Make Hostile" options

* Fixed "Mount Gun" to be working properly with non standard vehicles.

* Fixed PP problem