Support for Renesas R61523

The main new feature in this release is support for the R61523 640x360 LCD featured in the Sony Ericsson Vivaz U5 cellphone. A reverse-engineering article will appear on my website that describes this LCD.

Enhancements and fixes in this release:

Support Spansion 8Mb s25fl208k SPI flash
Add a selection of additional fonts
Font class does not support non-contiguous character sets
Update supported Eclipse to Kepler/GNU ARM 1.1.2
Support R61523 controller
Support different FSMC timings for read and write