now allowing retrieval of errorcodes for CLI
fixes a minor typo
Adding CRUD functions for Host Groups
Merge branch 'master' of https://github.com/omaciel/robottelo into hostgroups

Conflicts:
	tests/ui/baseui.py
Adding update crud function and a test that uses it
Merge branch 'master' of https://github.com/omaciel/robottelo into hostgroups

Conflicts:
	lib/ui/user.py
whitespace fixes
New subnet tests
PEP8 cleanups
extending User tests to check for expected error code
Merge pull request #142 from cswiii/errorcodes

Ability to retrieve errorcodes from commands sent via paramiko
Updated review comments
Fixing pep8 errors in other files
Merge conflict - locators.py decorators.py baseui.py
Fixed two locators, removed unused import
fixing more pep8 stuffs and ignoring some pep8
Removed \ from line breaking
PEP8 line shortening
Removing one more line breaker
Adding a locator back which got removed during merge