Grouping by period selection macro not mandatory
Added Report: Epid details per analysis and cases
Added Report: Aetiologic agent prevalent species per country
Added Report: Number of cases per country
Cases per country report (epidemiology): Client Case's ID replaced by Hospital Case's ID
Hide Analyses results table when Case's without ARs (Cases per Country report)
Aetiologic agents per country improvements
Cases per country report (Epidemiology) improvements
More Cases per country improvements: column widths and footers readjustments
Added Report: Epidemiology > Sample and Case related report > Cases per analysis
Added report: Epidemiology > Analyses related reports > Results summary per country
Merge branch 'epid' of github.com:bikalabs/Bika-LIMS into epid