Disable fuzzy matching in transifex automation scripts

Fuzzy matching can cause unexpected problems.
So add option "--no-fuzzy-matching" to command "python setup.py update_catalog"
in propose_translation_update and upstream_translation_update scripts.

Bug 1176164

Change-Id: I632d6eb9280ca11883760f17fc4363275692b38b
Reviewed-on: https://review.openstack.org/31472
Reviewed-by: James E. Blair <corvus@inaugust.com>
Approved: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins