Use six iter compats.
Compile .mo files on `pip install -e` too.

Fixes https://github.com/edoburu/django-fluent-pages/commit/1561e063c3ee0ae8ef0559a4665dd2d8319dd066
Update get_child_type_choices() signature for django-polymorphic 0.6 compatibility.
setup: add wheel support
Fix compatibility with future==0.13

The metaclass assignment breaks on the `newobject` in future 0.13

Issue: https://github.com/PythonCharmers/python-future/issues/91
setup.py: require latest release versions, not alpha versions.

Updates django-parler and django-fluent-contents and django-any-urlfield
Grealtly simplify the integration with django-fluent-contents.

Creating new plugins that reuse the Placeholder/ContentItem system is
much easier now. A separate module is provided with all the required
base classes.
Add CurrentPageMixin/CurrentPageTemplateMixin views.

This makes creating custom views in a PageType much easier.
The views can easily read the current page,
and benefit from additional integration.
Fix recursion in default admin/fluent_pages/page/change_form.html template

Amends: 14763980c004273d1adb00000d941f6639d63f30
Use absolute_import in fluent_pages.integration.fluent_contents
Auto-detect allowed plugins when placeholder_layout_template is set.
Added in_sitemap flag, which is now false for the RedirectNode
Added `SeoPageMixin.meta_robots` property

It's set to ``noindex`` for pages outside the sitemaps.
Fix UrlNodeQuerySet.in_sitemaps()
fix typoo. omg.
Merge pull request #40 from vinnyrose/python3_iter_fix

Use six iter compats.
Avoid queries to access to page.parent_site

Typically this value already exists in the Django Sites framework cache.
Remove Django 1.3 importisms
cleanup: move utility functions to django-fluent-utils package
Improve Django startup, avoid ContentType queries during imports