debug output

[jovanbulck]

the print statements "ik wil inloggen" etc should be toggable with a --debug and/or --nodebug flag

You can still turn debug on by default for developer builds for now, as in jsh if you want to, but users should be able to turn it of if wanted. print statements can be useful for future debugging though

[GijsTimmers]

I was planning to remove them in the future, but this is a nice alternative.

[jovanbulck]

this is now covered in issue #59