Fix menu setup
Add ZFdevice support for SD card
Fix 2.0 board listing
Timers: allow set up frequency
Remove bootloader code hooks
Add XuLA2
Enlarge and fix sprintf
SigmaDelta: set pin as output, fix instance id
SigmaDelta: set pin as output, fix instance id
XuLA2 uses internal SPI for SDcard
Remove zlib from linker