add buildout configuration for standalone testing
prevent the viewlet from raising an error for objects that are not annotatable
Update README.rst

Refined confusing info about Plone versions.
Merge pull request #28 from witsch/non-annotatables

fix for non-annotatable objects
Add CHANGES entry for latest pull request merge.
Prepare 2.2.7 release.
Prepare 2.2.8 release.
Use latest bootstrap.
Add jarn.mkrelease and zest.pocompile to buildout. Pin zope.interface to 3.6.1
Include the CHANGE notes from garbas which haven't been pushed to github.
Back to development.
Rename CHANGES.txt to CHANGES.rst.
fix: add form serialized data to the delete comment ajax form submit

Even if in fresh Plone there is no data, I'm in a case where I'm adding
'ajax' marker in the form to not render all the page (which is the case
here) and the render is not used at all except if the action do not
happens in ajax.
typo: renamed 'annotions' to 'annotations'
Refactor tests to use the PLONE_APP_CONTENTTYPES_FIXTURE instead of the PLONE_FIXTURE. This fixes all test p.a.discussion test failures.
Remove interlude from test dependencies.
Portuguese translation added.
Pin zope.interface to 4.0.5.
Prepare 2.2.9 release.
Update version number to 2.3.0 since we need a new master branch for Plone 5 due to the changes in the test setup (PLONE_APP_CONTENTTPYES_FIXTURE).