Fix action New in SPT to overwrite existing file
Fix action Save As in SPT to properly overwrite existing files
Display H5 file opening errors to user in SPT
Fix opening files with unsaved changes in SPT
Fix dumping of stderr to log window in SRT
SRT terminates subprocess on exit
More log window fixes
Add Stop button to SRT
Fix bug where empty rows left in h5 file when using Save As
Add device rename button to SPT
Add confirmation dialog for removing device
Adding device in SPT automatically selects it after creating