updated manual screenshots so that they are in sync with 1.9.4

doc/manual/manual.txt

@@ -94,7 +94,7 @@ your language; then click the "Tutorial" button to run the tutorial;
 and then play the campaign, "A Tale of Two Brothers" by clicking the "Campaign"
 button and selecting it from the list provided.
 
-image:images/main-menu-1.5.11.jpg["Main Menu"]
+image:images/main-menu-1.9.4.jpg["Main Menu"]
 
 Tutorial::
  The tutorial is a real, but basic, game which teaches you some of
@@ -225,7 +225,7 @@ possible only within the scenario.
 There are several possible options you are provided with when clicking on the
 "Multiplayer" button:
 
-image:images/multiplayer-1.5.11.jpg["Multiplayer dialog"]
+image:images/multiplayer-1.9.4.jpg["Multiplayer dialog"]
 
 Login
 +++++
@@ -294,7 +294,7 @@ a game with a friend against an AI opponent.
 The Game Screen
 ^^^^^^^^^^^^^^^
 
-image:images/game-screen-1.5.7.jpg["Game Screen"]
+image:images/game-screen-1.9.4.jpg["Game Screen"]
 
 Regardless of whether you are playing a scenario or a campaign, the
 basic layout of the game screen is the same. The majority of the screen
@@ -302,7 +302,7 @@ is filled with a map which shows all of the action that takes place
 in the game. Around the map are various elements which provide useful
 information about the game and are described in more detail below.
 
-image:images/top_pane-1.5.7.jpg["Top Panel"]
+image:images/top_pane-1.9.4.jpg["Top Panel"]
 
 Across the top of the screen from left to right are the following items:
 
@@ -319,7 +319,7 @@ Across the top of the screen from left to right are the following items:
  11. Defense and movement of the currently selected unit on the marked hex
  12. Current hex type
 
-image:images/right_pane-1.5.7.jpg["Right Panel"]
+image:images/right_pane-1.9.4.jpg["Right Panel"]
 
 Down the right of the screen from top to bottom are:
 
@@ -552,7 +552,7 @@ the scenario, which is typically lower as the difficulty level increases.
 Recruiting and Recalling
 ^^^^^^^^^^^^^^^^^^^^^^^^
 
-image:images/recruit-1.5.7.jpg["Recruit dialog"]
+image:images/recruit-1.9.4.jpg["Recruit dialog"]
 
 The major use for gold is to build your army by recruiting new units
 or recalling units from previous scenarios in a campaign. Units may be