Refactor code in the print service
Refactor code in the print service

This follows up on #247. We immediately `continue` the loop when we find a feature with no geometry.

adube/ngeo,kalbermattenm/ngeo,balpreetspankaj/ngeo,balpreetspankaj/ngeo,mygu/ngeo,ger-benjamin/ngeo,pgiraud/ngeo,camptocamp/ngeo,ger-benjamin/ngeo,Jenselme/ngeo,adube/ngeo,camptocamp/ngeo,ger-benjamin/ngeo,camptocamp/ngeo,Jenselme/ngeo,mygu/ngeo,Jenselme/ngeo,camptocamp/ngeo,adube/ngeo,kalbermattenm/ngeo,pgiraud/ngeo,balpreetspankaj/ngeo,adube/ngeo,Jenselme/ngeo,camptocamp/ngeo,kalbermattenm/ngeo,pgiraud/ngeo,mygu/ngeo