dsnet up fails because default config doesn't populate the ReportFile field

[axelsimon]

Full error:
Key: 'DsnetConfig.ReportFile' Error:Field validation for 'ReportFile' failed on the 'required' tag - failed to load configuration file
this is with dsnet v.0.7.2.

I'm pretty sure that field used to be filled with a default. In any case, simply making sure the config has something like:

    "ReportFile": "/tmp/dsnetreport.json",

is enough to stop dsnet from complaining and to issue dsnet up successfully.

[naggie]

Thanks @axelsimon -- fixed in master. I'll cut a release soon