JobStreams starter should remove special characters from the xml command

Current Situation

when the jobstream plugin starts a job a xml command is created. This command can contain some forbidden characters like 0x8 e.g. when the local display name for the month defines them. The job than will not be started.

Desired Behavior

Before starting a job the jobstream plugin should strip away all forbidden characters below 0x20 except 0x9 (TAB), 0xA (CR?), 0xD (LF?)