Description of problem:
Wallaby commands don't print problems on error output.

e.g.
# adding of existing parameter
$ wallaby add-param P
Adding the following parameter: P with {}
Console Connection Established...

$ wallaby add-param P 2>/dev/null
Adding the following parameter: P with {}
Console Connection Established...
Couldn't create parameter P (Parameter name P is already taken)

$ wallaby add-param P >/dev/null
$

Version-Release number of selected component (if applicable):
wallaby-utils-0.16.3-1

How reproducible:
100%

Steps to Reproduce:
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Actual results:


Expected results:


Additional info: