Changes

* pushbutton: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=P12299SCT-ND* 0R 0402 http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=311-0.0JRCT-ND* adj. LDO -20V, 1A http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=NCP1117STAT3GOSCT-ND* adj. REG -40V, 1.5A http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=296-12602-1-ND* microSD socket http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=101HR1941CT-00303ND* mini-68-1usb cable http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=Q362-ND* 3.3V LDO -18V http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=Q362AP1117E33GDICT-ND