progress: use stderr instead of stdout; check stderr.isatty()
This means that progress bars will continue to show on the terminal
when both stdin and stdout are redirected.
i18n-pt_BR: synchronized with
9f6e30a89f11
i18n-sv: synchronized with
a1cb8ca051c0
Some simpler translations done too
Tests with spaces in paths
This allows most tests to succeed with
./run-tests.py --tmpdir='/tmp/hg test'
and introduces other tests for spaces and shell quoting
Fix run-tests.py -jX after
2ed667a9dfcb