Description of problem:
When we performed some operation using rhui-manager and if something went wrong, we usually got following error message:

An unexpected error has occurred during the last operation.
More information can be found in /root/.rhui/rhui.log.

For example.. 
================
( Please consider the following error messages just as an example; here the objective is to improve the error handling )

I was trying to unregister a CDS using rhui-manager and got the same error on stdout. 

rhui.log says:
=================
ServerRequestError: (500, u"PulpException: u'Communications error while attempting to release CDS [dhcp193-73.pnq.redhat.com]; check the server log for more information'

pulp.log says:
================
PulpException: u'Communications error while attempting to release CDS [dhcp193-73.pnq.redhat.com]; check the server log for more information'


So from end user perspective, the error message in log should also be on stdout.

Version-Release number of selected component (if applicable):
pulp 0.171
rhui-tools 2.0.22

How reproducible:
everytime

Steps to Reproduce:
1.
2.
3.
  
Actual results:
An unexpected error has occurred during the last operation.
More information can be found in /root/.rhui/rhui.log.

Expected results:
Error message in logs should be on stdout, like:
Communications error while attempting to release CDS [dhcp193-73.pnq.redhat.com]; 
More information can be found in /root/.rhui/rhui.log.

Additional info: