Merge pull request #32 from tdesvenain/master

PEP8 + i18n fixes
Update HISTORY.txt

Fix typo...
new po generation script with rebuild support and without a fixed list of languages
basque translation
basque translation
ups, previous translation was empty
basque translation
use Plone's standard markup for required fields
new i18n messages
i18n fixes
regenerate po files
basque translation
spanish translation
manual pot file
remove compression to ease debug