Improve documentation for Debian/Ubuntu
Changes needed for project to compile.
Minor correction in README, install procedure
Optimization in sd_raw_rec_byte
Inlined rec_byte function in read loop
install instructions for ubuntu updated, udev rules
Arduino ISP lines added to makefile
makefile: target program_w_arduino_isp added
target board modification warning
Merged Boris' changes.
Estethic in sd_raw and added correct LED for 32u4.
SD reader seemingly working with 15us delay between spi calls. The SPDR = 0 seems to be necessary when receiving spi data.
Bumped to bGeigie3 v3.0.7