Add support for tagging eeprom date with software version and bump version number
ignore .xcworkspace
make number of slits a #define for readability
Make slit positions for all but first slit relative to first
Report closed position properly
make flow more clear since backlash =0
Fix potential error case. stop and PA move both terminate calibration in progress. stop also terminates a homed move
Merge fibershoe-baseoffset. Slit positions 2-6 are now set and reported as deltas from slit position 1