add basque translation
Complete italian translation
fix typos and some bad translation
fix typo
add some more version pins

this way `versions.cfg` can be used in `extends` without (a plone 4.3) buildout complaining about picked versions...
Update contributors.rst
Add Traditional Chinese Translation.
Remove X-WR-CALNAME (fixes MS Outlook problem)
apidoc, comments
Changed  and  to accept IEvent, IOccurrence and IEventAccessor objects and avoid confusion on using these methods.
Merge pull request #129 from l34marr/zh-tw-translation

Add Traditional Chinese Translation.
tnx!
Merge remote-tracking branch 'FHNW/master'
For ical exports, remove X-WR-CALNAME, X-WR-CALID and X-WR-CALDESC. X-WR-CALNAME caused Outlook to create a new calendar on every import. These properties are not neccessary and not specified by RFC5545 anyways. Fixes #109, closes #132.
note about issue #105, #130
prepare release
prepare release
back to development
merge from master
more version fixes
Merge branch 'plone5' into remove-annotation-storage-95