#407 Fix chat order

[Nicolas Weeger]

Proposed patch for https://sourceforge.net/p/crossfire/bugs/892/

This introduces "delayed buffers" which are sent after player's processing & handling is complete.

Quests messages will then use this mechanism to send their text after some actual dialog.

Also change magic ear's text to use this, so player correctly sees first what she said then the ear's reply.

Patch to apply with "git am".

[Kevin Zheng]

Looks good to me.

[Kevin Zheng]

Committed, thanks!