Fixed issues reported by Zamolxis:

* dismiss Hero works blocked in the castles
* the backpack scrollable arrows aren't available (yellow, clickable) even when backpack is empty.
* added missing info texts for buttons in hero window (and added functionality of enable tactic formations button)
* can select (single click) and enter castle (double click) from the map. Same for hero.
* Hero gets automatically selected after End Turn 
* Hero is automatically selected when exiting town
* In Garrison or Hero army: units are selected when we first click on them
Fixed (at least partially) also a problem with disappearing path

client/Client.cpp

@@ -545,5 +545,7 @@ void CClient::run()
 
 void CClient::close()
 {
+	boost::unique_lock<boost::mutex>(*serv->wmx);
+	*serv << ui16(99);
 	serv->close();
 }