Updated openstack/openstack
Project: openstack/heat  3f83937705818ba38a6b1679d2bbb046c4520933

Refactor boolean conversion into a separate function

A method to convert API parameters to boolean values will be useful for
parsing the show_deleted API parameter, so create a separate function
named extract_bool.

blueprint stack-list-soft-deleted

Change-Id: I1bce5516b0a8c97d6c08607922968454d94b4406