Added PageQuerySet
Added 'page' attribute to PageQuerySet
Added inclusive flag to ascendent_of, descendant_of and sibling_of
PageQuerySet: renamed 'ascendant' to 'ancestor'
Make PageQuerySet inherit from treebeards MP_NodeQuerySet
Add PageManager which returns PageQuerySet objects
Added unit tests for PageQuerySet
Added changelog entry
Tweaks to PageQuerySet.not_descendant_of tests
PageQuerySet live/type tests now check that the methods return certian objects
Merge pull request #185 from kaedroho/pagequery

Page QuerySet