jmespath library does not undestand custom string types
such as AnsibleUnicode, and AnsibleUnsafeText.
So user need to use ``to_json | from_json`` filter while using
functions like ``starts_with`` and ``contains`` etc.
This hack will allow user to get rid of this filter.
Fixes: #320
Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>
