remove needless div.container
Merge pull request #223 from cedricmessiant/master

Update French translations
79 cols
fix syntax error
Merge pull request #224 from plitzenberger/fix.documentation_build

fix syntax error in cataloging.rst
Merge pull request #220 from plitzenberger/fix.workflow_tab

remove needless div.container
i18n: also depend on lingua<2.0 for chameleon extraction (see https://github.com/wichert/lingua/issues/31)
i18n: update catalogs
dont depend on batch length for batch itself to be boolized
add clear method to folder