Some URLs are broken, so fix them.
The other URLs are redirect to new URLs,
so replace them with new ones.
Change-Id: Ida2fd70ad0d7b029fadfe91be14d7180b9b5b8d1
Closes-Bug: #1707104
Module gettextutils from oslo-incubator was graduated to separate
library (oslo.i18n) and removed from repository, so we should use
new library.
Change-Id: I15d36ac5a2bb88b332ffa38d29488b75c55a20a9