Trying to change format of combo box items (errors)
Revert "Trying to change format of combo box items (errors)"

This reverts commit 705b371069c144b05019fb858f3c5a3f15da412a.
Deleted private member 'spectrumNumber' from dataPoint class
Fixed bugs and added metadata handling
Added ability to open files with no metadata
Created pop-up box for user to enter metadata if needed
Working to open files without metadata & plot