Add support for a monochrome dot matrix LCD (128x64) supports also color LCDs

A variety of LCDs with the ST7565R controller are available on the market you can by them at digikey, Reichelt, Farnell. To give one example: http://www.digikey.com/product-detail/en/NHD-C12864WC-FSW-FBW-3V3-M/NHD-C12864WC-FSW-FBW-3V3-M-ND/2626409 from Digikey (16US$) available in different backlight colours.

[update]Lots of supported Displays. List: http://code.google.com/p/u8glib/wiki/device[/update]

Benefits are: Several font sizes, more lines, graphic logo(s). It is e.g. possible to change to a larger font if there is only little amount of text on the screen like on the axis movement screens... 

The current implementation is tested under Arduino 023 an running on the STB hardware: http://www.reprap.org/wiki/STB_Electronics

The changes to the Marlin software are minor, the biggest part is the rewritten display driver. [update] It is using the library http://code.google.com/p/u8glib/ [/update]