Wagtail setup on Django 1.7.

Wagtail officially not yet support Django 1.7, so here I used kaedroho:dj17_2
[1] branch, with experimental Django 1.7 support.

To setup whole project I followed official documentation [2] and consulted demo
project examples [3].

[1] https://github.com/kaedroho/wagtail/tree/dj17_2
[2] http://wagtail.readthedocs.org/en/latest/howto/settings.html
[3] https://github.com/torchbox/wagtaildemo
Add Wagtail richtext filter and userbar.
Merge branch 'wagtail-django-17'

Conflicts:
	buildout.cfg
	setup.py
	src/akllt/settings/base.py
	src/akllt/templates/base.html
	src/akllt/urls.py
	versions.cfg