Invoice mgt: generating PDF
Invoice mgt: tabbed line
Invoice mgt: passing the locale around
Invoice mgt: invoice date
Invoice mgt: teacher & period
Invoice mgt: restructuration of the code
Invoice mgt: from/to table
Invoice mgt: VAT numbers
Invoice mgt: complete test data
Invoice mgt: formatting of hours
Invoice mgt: detail of students
Invoice mgt: total line
Invoice mgt: all totals
Invoice mgt: formatting
Invoice mgt: formatting
Invoice mgt: align student hours
Invoice mgt: cell builder
Invoice mgt: cell format for the total amounts
Invoice mgt: amount cell formatter
Invoice mgt: paddings for the total table