Partially fix issue #113, while here add support for Date
Merge branch 'master' into refactor
Merge branch 'master' into refactor
Fix node position when creating/updating node
Improve node node order (position) test
Merge remote-tracking branch 'origin/refactor' into refactor_node
Remove #encoding: UTF-8 comment, it's no longer needed
Refacto Releaf::Node to be (almost) abstract model
Got rid of common fields
Fix dummy application layout. Fixes #124
Remove custom validations support via acts_as_node.
Fix issue #121
Fix issue #122
Fix css: form .section max width
Fix issue #120
Update changelog, explain some potentional problems with migration to Node
Rename Releaf::Node::Route to Releaf::ContentRoute
In tests use Node instead of Releaf::Node
Use any? instead of exists? when comparing to boolean.

This works around bug in Rails 4.0.0, when exists? returns 1 or nil
instrad of true/false.
Convert Releaf::Node model to Releaf::ContentNode module