[Zabbix-translators] pootle upgraded

[Rihards <rih...@za...>]

as a part of upgrading everything on zabbix.org, we also upgraded pootle
to 2.5.0.

the new version seems to be quite nice - for example, tests are not
hidden in the review tab anymore, but can be expanded (see 'details') in
the overview tab. they are also categorised and critical problems are
hilighted.

many seemingly incorrect test results are gone... although looks like at
least some are still there. i'm still looking into some other issues, too :)
-- 
 Rihards