gong yong sheng 79dfbfe2fd Use oslo i18n
Also, we move tacker.i18n into tacker._i18n.
Other i18n usage integration will be done by bug 1599735

Change-Id: I742f7be08958337720056bcc4344dcdc06606035
Partial-bug: #1552282
2016-07-12 22:57:50 +08:00
..
2016-07-12 22:57:50 +08:00