version 1.1

Upped version number for 1.1 release; added license, changelog information and updated
readme;  added the following bugfixes and features:

* BUGFIX: Stop multiple doors from appearing next to each other.
* BUGFIX: Change unwield key binding to U to avoid conflict with binding for move NE.
* BUGFIX: Proper word wrapping in message window.
* BUGFIX: Corrected spelling and punctuation in messages and documentation.
* BUGFIX: Fixed drawing while waiting for input.
* FEATURE: Improved usage of colors.
* FEATURE: simple FOV and automapping.
* FEATURE: Prompt before quitting.

(and an easter egg if you get killed by a troll. :)