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
Add a dummy_request method to Page so that we can generate page previews without passing in the active request object (which may have undesirable side effects, e.g. may be a POST)
Don't use URLify if a user has manually set a slug

Not a big deal, and can easily be handled by using the available js_hook,
but this has annoyed the hell out of me and others may find it useful.
Add get_page_modes and show_as_mode methods to Page.

This abstracts out from the preview methods the details of how the page is generated.
PageQuerySet live/type tests now check that the methods return certian objects
Merge pull request #185 from kaedroho/pagequery

Page QuerySet
Support within wagtailadmin for selecting a view mode in which to preview a page.

The 'preview' option is split out from the 'save' popup menu into its own button (it was deemed appropriate to split it off since it doesn't perform any database-level actions). If the page defines multiple page modes in get_page_modes, this button becomes a popup, allowing the editor to choose a mode. Finally, preview_on_create and preview_on_edit are updated to pass the chosen mode into the page's show_as_mode method.
Override a few treebeard methods to add inclusive flag
get_siblings now defaults to inclusive=True
Merge pull request #191 from kaedroho/page-changes

Override a few treebeard methods to add inclusive flag
Merge branch 'master' of https://github.com/benemery/wagtail into benemery-master
add Ben Emery to contributors