Add translation to pt_BR
Fix the translation of the "Blog archive"

This patch fix the translation of the "Blog archive" in
`aggregated.html` based in the comment of vladris.

Close issue #10.
Merge pull request #11 from r-gaia-cs/issue10

Fix the translation of the "Blog archive"
Merge pull request #9 from r-gaia-cs/pt_BR

Add translation to pt_BR
Update CONTRIBUTORS. Thanks Raniere!
Switch Tinkerer to flat theme
Some instructions on tweaking the flat theme
Change default theme in conf.py template to flat
Fixes #8 - would be nice to use language from conf.py instead of system locale but setlocale can't always use language string used by gettext
Add travis YAML
Update travis config
Make output work on both Python2 and Python3
Remove Python 3.2 from travis - looks like Jinja2 raises all sorts of exceptions.
Update test_patch.py, some Python3 workarounds don't repro with Python 3.3.
Add Travis badge to README
Update tox.ini (python 3.3, nose dependency)
Cleanup some old test code.
Replace build-all-themes.sh with Python script so it can run on any OS. TODO: generate.sh
Update build.py to replace genereate.sh.
Minor release - update default theme to flat
Update theme preview (flat is now index.html, modern5 is index_modern5.html)