Rename "Run Model and Batch Occurrences For Validation" to "Run Model then Batch Occurrences For Validation", for clarity
Add query to get the number of occurrences eligible for a model run, between the dates specified
    long getNumberOfOccurrencesEligibleForModelRun(int diseaseGroupId, DateTime batchStartDate, DateTime batchEndDate);
Validate batch dates, i.e. prevent the model from running if there are not enough points for the model run after this one, due to the batch not containing enough points.
Various fixes
Merge pull request #300 from SEEG-Oxford/365-insufficient-in-batch

Prevent manual model runs with insufficient occurrences in batch