Updated openstack/openstack
Project: openstack/heat  f16471a97fec2d89e38fe47ce890c60b8e6b4c32

Remove deprecated function i18n.install('heat')

Since i18n.install() is deprecated, remove it from heat codes and
import i18n._() to where it needed.

blueprint oslo-i18n
Change-Id: Icefada18b5a33112b425cd90d31d3a6a5f06188a