Merge pull request #383 from jeanmask/stable/0.2.x

Improves views of flatpages.
Upgrade grappelli version
Fix coverage version
Merge pull request #384 from jeanmask/stable/0.2.x

Add new feature to show any flatpage in all django sites.
Fixes haystack search
Merge pull request #385 from mauler/fix-haystack-search

Fixes haystack search
Fixes paginte_limite parameter on API
Adds get_tags_counter templatetag

Useful tag to return most common tags on the database, very
recommended to cache the block that use it.
Updates changelog
Merge pull request #387 from mauler/fix-issue-386

Fixes paginte_limit parameter on API
Merge pull request #388 from mauler/feature-get_tags_counter

Feature get tags counter
added new action to duplicate container #374
Fix pep8
update change log
Merge pull request #389 from opps/container_action_duplicate_374

added new action to duplicate container #374
update change log
start new version 0.2.8
thumbor require Pillow <=2.0.0
Change calls of field "archive.url" to get_absolute_url on Image model.