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* Add stored procedure ``retrieve_grid_info_for_dc_v2`` similar to
``retrieve_grid_info_for_dc``, but with micronsPerPixelX,Y columns instead of
pixelsPerMicronX,Y.
* Removed columns in ``BLSession``: projectCode, sessionTitle,
structureDeterminations, dewarTransport, databackupFrance, databackupEurope,
expSessionPk, operatorSiteNumber, protectedData
* Remove columns in ``DataCollectionGroup``: ``workflowId``
* Remove tables: Pod, PHPSession, Log4Stat, Particle, EMMicroscope, DataReductionStatus,
SAFETYREQUEST, SAMPLECELL, SAMPLEEXPOSUREUNIT, SAXSDATACOLLECTIONGROUP,
WorkflowStep, WorkflowType, WorkflowMesh, Workflow, AssemblyRegion,
AssemblyHasMacromolecule, Assembly, Structure, SubtractionToAbInitioModel,
MeasurementToDataCollection, Instruction, Merge, Measurement, AbInitioModel,
ModelToList, Model, ModelList, FrameSet, Run, FrameToList, Frame, FrameList,
BufferHasAdditive, MeasurementUnit, MacromoleculeRegion, Subtraction,
Stoichiometry, Additive, Specimen, StockSolution, Buffer, Macromolecule,
SafetyLevel, SamplePlatePosition, SamplePlate, PlateGroup, InstructionSet,
PlateType, SaxsDataCollection, Experiment.