Typo and cleanup
Added CalculateMiddle.py

For now it's just a ridiculously simple calculator for centering the
rotation stage. Maybe it evolves into a script to center the stage
automatically...
Renamed CalculateMiddle to CenterAxis
CenterAxis.py

Added first skeleton for EPICS connection (from WideFieldScan.py)
A bit more verbose at the end, telling the user which options were used