Changed the contrib README's to use markdown rather than plain txt. Removed the battle for Evennia folder.

evennia/contrib/README.md

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+
+# Contrib folder
+
+This folder contains 'contributions': extra snippets of code that are
+potentially very useful for the game coder but which are considered
+too game-specific to be a part of the main Evennia game server.  These
+modules are not used unless you explicitly import them. See each file
+for more detailed instructions on how to install.
+
+Modules in this folder are distributed under the same licence as
+Evennia unless noted differently in the individual module.
+
+If you want to edit, tweak or expand on this code you should copy the
+things you want from here into your game folder and change them there.
+
+* Barter system (Griatch 2012) - A safe and effective barter-system
+  for any game. Allows safe trading of any godds (including coin)
+* CharGen (Griatch 2011) - A simple Character creator and selector for
+  Evennia's ooc mode. Works well with the menu login contrib and
+  is intended as a starting point for building a more full-featured
+  character creation system.
+* Dice (Griatch 2012) - A fully featured dice rolling system.
+* Email-login (Griatch 2012) - A variant of the standard login system
+  that requires an email to login rather then just name+password.
+* Extended Room (Griatch 2012) - An expanded Room typeclass with
+  multiple descriptions for time and season as well as details.
+* Line Editor (Griatch 2011) - A fully-featured in-game line-editor
+  with undo/redo/search/replace/format and other modern features.
+* Menu login (Griatch 2011) - A login system using menus asking
+  for name/password rather than giving them as one command
+* Menu System  (Griatch 2011) - A general menu system with multiple-
+  choice options and nodes able to trigger commands and code snippets.
+* ProcPool (Griatch 2012) - Process pool mechanisms to offload heavy
+  operations to a separate computer process asynchronously.
+* Slow exit (Griatch 2014) - Custom Exit class that takes different
+  time to pass depending on if you are walking/running etc.
+* Talking NPC (Griatch 2011) - A talking NPC object that offers a
+  menu-driven conversation tree.
+* Tutorial examples (Griatch 2011, 2015) - A folder of basic
+  example objects, commands and scripts.
+* Tutorial world (Griatch 2011, 2015) - A folder containing the
+  rooms, objects and commands for building the Tutorial world.