quite some updates to the manual

doc/manual/manual.txt

@@ -83,7 +83,7 @@ When Wesnoth first starts it displays an initial background and a column
 of buttons called the Main Menu. The buttons only work with a mouse. For
 the impatient, we recommend you: click the "Language" button to set
 your language; then click the "Tutorial" button to run the tutorial;
-and then play the campaign, "Two Brothers" by clicking the "Campaign"
+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.jpg["Main Menu"]
@@ -115,7 +115,7 @@ Multiplayer::
  opponents. You can play the games over the internet or at your computer,
  against computer or human opponents. When you select this button a
  dialogue will appear and allow you to choose how you want to play the
- scenario. To learn more, see <<multiplayer>>.
+ scenario. To learn more, see <<scenarios>>.
 
 Load::
  Click this button to load a previously saved game. You will be shown
@@ -124,11 +124,18 @@ Load::
  replay game, you can check the Replay check box. The loaded game will
  make all the moves from the beginning while you watch.
 
+Add-ons::
+ Click this button to enter the content server where a whole lot of
+ content created by normal users is hosted. Among the things available there
+ are many campaigns,  multiplayer eras (defining factions for multiplayer
+ games) and multiplayer maps. With the "Remove Add-ons" button you can remove 
+ them again once you do not want them anymore.
+
 Language::
  Click this button, select your language, and click OK to use it, or
  Cancel to continue with the current language. The first time Wesnoth
- starts, it defaults to English, but once you change it, it will start
- in that language.
+ starts, it defaults to English or your system locale if that can be
+ determined, but once you change it, it will start in that language.
 
 Preferences::
  Click here to change default settings.
@@ -141,6 +148,19 @@ Credits::
 Quit::
  Click this button to close Wesnoth. 
 
+Help::
+ Click this button to open the integrated Ingame Help System. It will provide 
+ you with information about units and all other gameplay relevant things of the
+ game. Most of those things are mentioned in this manual.
+
+More::
+ Click this button to read the next little tip from the "Tome of Wesnoth".
+
+Envelope::
+ Click this button (the icon of an envelope) to open a dialog where you can
+ enable summary uploads which will help us to further balance campaigns. This
+ option is not active by default and all data submitted will be anonymous.
+
 Game Modes
 ~~~~~~~~~~
 
@@ -165,6 +185,7 @@ The campaign is the primary form in which Wesnoth is intended to be
 played, is probably the most enjoyable, and is the recommended way for
 new players to learn the game.
 
+[[scenarios]]
 Scenarios
 ^^^^^^^^^
 
@@ -174,13 +195,9 @@ campaign units. You can play scenarios against the computer or against
 other players either over the internet or at your computer. Scenarios
 are accessed through the "Multiplayer" button on the main menu.
 
-[[multiplayer]]
-Multiplayer
-+++++++++++
-
-Multiplayer games are played against other players via the Internet
+In general multiplayer games are played against other players via the Internet
 (you can also run them on your LAN if you have one). These games are
-co-ordinated through the Wesnoth campaign server. Multiplayer games can
+co-ordinated through the Wesnoth multiplayer server. Multiplayer games can
 take anywhere from 1 hour to 10 hours, depending on how many players
 there are (and the size of the map). The average time is between 3 to
 7 hours. Games can be saved and loaded as many times as you like. So,
@@ -189,8 +206,35 @@ time is only a few hours. You cannot carry over units in multiplayer
 from one scenario to the next, so building up your army's strength is
 possible only within the scenario.
 
-You can host multiplayer games with your client or connect to the
-official Wesnoth game server and setup your game there. If you host a
+There are several possible options you are provided with when clicking on the
+"Multiplayer" button:
+
+image:images/multiplayer.jpg["Multiplayer dialog"]
+
+Join official Server
+++++++++++++++++++++
+
+This option directly connects you to the official server. You will end in the 
+lobby where you can create your games as you wish and where many games are 
+already open and maybe some players already waiting to join in a new match.
+
+Connect to Host/Server
+++++++++++++++++++++++
+
+This option opens a dialog box allowing you to enter the address of the 
+machine to join. This can either be another client that currently is hosting
+a networked game without using a server, or a different server. In this dialog 
+there also is the button "View List" that does show a list of official servers 
+that can be used as backup if the main server is currently not available.
+
+A rather complete list of official and user setup servers is listed at this 
+website: http://wesnoth.org/wiki/MultiplayerServers[Multiplayer servers].
+
+Host Networked Game
++++++++++++++++++++
+
+You can host multiplayer games with your client without the need of using a 
+dedicated server. If you host a 
 game with your client, other players need to be able to connect to your
 port 15000 using TCP. If you are behind a firewall, you will probably
 need to change your firewall settings to allow incoming connections to
@@ -198,48 +242,50 @@ port 15000, and tell your firewall to forward such traffic to the machine
 hosting the game. You should not need to make firewall changes to join
 games hosted on a public server or by someone else.
 
-Official and user setup servers are listed at
-http://wesnoth.org/wiki/MultiplayerServers[Multiplayer servers].
+Local Game
+++++++++++
 
-Hotseat
-+++++++
-
-Hotseat games are similar to Multiplayer games except everyone plays at
-the same computer by taking turns in the 'hotseat'. Hotseat games will
-take about the same time to play as games played over the Internet.
-
-Human vs AI
-+++++++++++
-
-You can also play any of the multiplayer scenarios against AI opponents
-rather than human players. This can be a good way to become familiar
+This creates a game just running on your computer. You can either use it as 
+hotseat game where everyone playws at the same computers by taking turns in 
+the 'hotseat'. Hotseat games will take about the same time to play as games 
+played over the Internet. Or you can just play a scenario against AI 
+oponents rather than human players. This can be a good way to become familiar
 with the various maps that are used for multiplayer games before playing
 against real opponents. It can also be used as a simple way to explore
 the capabilities of units from the different factions by choosing which
 faction you will play and which faction your opponents are in these games.
+Of course you can also mix both in one game. That is play together in a game with
+a friend against an AI opponent.
 
 [[game_screen]]
 The Game Screen
 ^^^^^^^^^^^^^^^
 
+image:images/game-screen.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
 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.jpg["Top Panel"]
+
 Across the top of the screen from left to right are the following items:
 
   1. Menu button
   2. Actions button
-  3. Turn counter
+  3. Turn counter (current turn/maxmimum number of turns)
   4. Your gold
-  5. Your total villages
+  5. Villages (your villages/total number of villages
   6. Your total units
   7. Your upkeep
   8. Your income
-  9. Current hex type
- 10. Current hex position
+  9. Current time or time left (in timed multiplayer games)
+ 10. Current hex type
+ 11. Current hex position (x-coordinate,y-coordinate)
+
+image:images/right_pane.jpg["Right Panel"]
 
 Down the right of the screen from top to bottom are:
 
@@ -640,7 +686,7 @@ Concealment::
   have units next to it. Any enemy unit that first discovers this unit
   immediately loses all its remaining movement.
 Cures::
-  A unit with can cure an ally of poison, although the ally will receive no
+  A unit which can cure an ally of poison, although the ally will receive no
   additional healing on the turn it is cured of the poison.
 Heals +4::
   Allows the unit to heal adjacent friendly units at the beginning of each