Updated readme with information about new lib-ified classes and functions.

readme.markdown

@@ -20,3 +20,11 @@ A robust command-line dice-rolling utility. Many others exist, of course, but th
 
 ### dice.py
 When treated as a library, provides a robust Dice class with a convenient from_str() classmethod.
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+
+### battle
+This module has data objects for storing and retrieving information about a battle, initiative groups, and combatants. It prints to stdout and prompts for input from stdin.
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+
+### easyinput
+Convenience functions for prompting/reading strings and ints. Has the ability to specify defaults, and more.