Various improvements to desktop file
Various improvements to desktop file

Version number needs to be the version number of the desktop file format. The exec command needs to accept multiple files (capital F). The tryexec needs to accept no files. Added a comment.

Contributes to issue CURA-730.

senttech/Cura,hmflash/Cura,Curahelper/Cura,hmflash/Cura,totalretribution/Cura,ynotstartups/Wanhao,senttech/Cura,fieldOfView/Cura,totalretribution/Cura,ynotstartups/Wanhao,Curahelper/Cura,fieldOfView/Cura