This commit is the version 0.9.9.
* Added support for other currencies than USD (currently only supported by MtGox): EUR, GBP, AUD, CAD, CNY, JPY, RUB and SEK.
* Added a weekly graph.
* Added support for the BTC-e Bitcoin exchange.
* Removed support for the Bitfloor Bitcoin exchange.
* Added a grayscale mode for users having problems seeing the different colors.
* The red color is now lighter.