Add hidden option MAIN_ODT_AS_PDF to save ODT as PDF (only if
libreoffice/jodconverter/exec shell right)
Save PDF file
Better file name management
Fix [ bug #833 ] Accounting journals are broken
Change-Id: I07221687a67be28376ee9146eaa46567486300ce
[ task #640 ] Better deposit invoice management
Merge pull request #851 from FHenry/develop

 Add hidden option MAIN_ODT_AS_PDF to save ODT as PDF