Added function for getting sequential id given specimen_id and viceversa. TAT: Pagination of graph data set.
Pagination on tabularized graph data source for TAT reports. These use sequential specimen IDs.
TAT data source tables now sortable.
Configurable display of the SpecimenID format in defaults.php (SPEC_ID_FORMAT). Closes #43
Merging sequential-specimen-ids-per-category to master