Fix no death message on tmwa server.
Fixed some typos.
Add support for /me command in pet talk.
In whisper constructor allow separatly set nick and caption.
Add server feature haveNpcWhispers.
Allow send whisper to npc from context menu if server have this feature.
Umassign default value for attack key.
Not allow move with keyboard if popup menu opened.
Allow control popup menu by up/down keys.
Add open context menu action.

No key assigned.
New chat command: contextmenu
Update manaplus.cbp.
Add buy action.

New chat command: /buy [name]
Add sell action.

New chat command: /sell [name]
move buy and sell actions from commands.c to actions.c file.
Extend talk chat command like buy and sell commands.
load npc menu.
Add default npc menu items if missing in configuration.
Show custom menu for npc.

Also fix loading menu.
Handle custom commands in npc menu.
Add chat command for silent sendong whisper message.

New chat command: /w2 name message
Aliases: /whisper2
         /msg2