Add 4DSystems SGC Display Protocol support
Major: add new features and fix bugs
Improvement: restore display settings when returning from shutdown
Add: Character and String commands
Improve: memory usage
Improve: variable ACK timeout
Improve: State machine now restores settings when powering up from shutdown
Improve: no more flickering effects when powering up from shutdown
Add: Sleep mode support
Add: full command set
Add: Support for "infinite" Ack timeout
Improve: needs less memory
Version with tested commands, Release Candidate 1
Extract defines from pinning.c for meta generation
Usage: ifdef(`pin_XYZ', ....)
updated SD Reader library from
http://www.roland-riegel.de/sd-reader/
version 20120612
New configure options to control the SD reader module:
 - SDHC support
 - Read-only mode
 - Long file names

Option SD_NETIO_ADDON_WORKAROUND is no longer needed,
as the SPI module always sets the CS to high.
USTREAM, SER_RAM_23K256 and S1D15G10 use SPI too
power switching of SD card slot via pin SD_READER_POWERON
write protect signal is high active
card detect signal is low active
vfs_sd_open_in() only needed if SD_WRITE_SUPPORT == 1
fine-grained debug level
EMCD commands separately selectable
new commands "info" and "rm"
provide prototypes for ecmd functions
use sd version of vfs calls
option -SD_NETIO_ADDON_WORKAROUND has been removed so the help is obsolete
fix bug #92
Add: Autosleep in Shutdown
Add: Pinning for generic_teensy, netio and netio_addon
Fix: some minor bugs
Tested commands
--> Release Candidate 2
Change: GPL v3
Add: Help text in menuconfig
undo unvolontary changes to i2c