New logging statements for the action and related
method call of 'ValidationActions' class.
Expanded exception handling for the 'show_validations_parameters'
method of the 'ValidationActions' class.
Removal of superfluous imports.
Signed-off-by: Jiri Podivin <jpodivin@redhat.com>
Change-Id: I2ad5a212dcd4cdb40ca04f7cce3d18c7527f63b2