Deleting instrumentation pictures when deleting instruments or
references
Bugfix for JAXB error: updated XML annotation
Bugfix to show dates consistently as UTC
Added measurand designator support
Removal of unused methods and fields
Enhanced instrument auto-insert
Instrument calibration support
New method to get all calibration ids for a list of spectra
Commented a probably useless bit of code to populate the instrument
Support for Spectral Evolution files. 
Auto-insert of new fileformat information.
New method to return calibrated instruments.
New method for retrieving calibration_ids for a group of spectra
Support to get calibration ids for a group of spectra
Spectral Evolution file reader support
New loader class for Spectral Evolution files
Changes to database to upgrade from 3.0 to 3.1