Zero-indexing in calibration error dialogs

[Armita Manafzadeh]

When you get error dialog windows during calibration, the values in the dialogs are zero-indexed (i.e., camera 1 is called camera 0, frame 1 is called frame 0, etc.)

[Benjamin Knorlein]

fixes #149 : index starts with one for the calibration error dialog

→ <<cset e1a57e1985ff>>

[Benjamin Knorlein]

fixes #149 : Fixed another dialpg

→ <<cset fb5f1d6e8965>>

[Benjamin Knorlein]

Thanks, I fixed another dialog but missed that one