Update debian.sh
Change page url functions to use reverse

Fixes issue #69
Merge branch 'master' of https://github.com/torchbox/wagtail
added new screenshots, corrected some typos
reverted debian.sh
Merge branch 'chrxr-master'
Merge branch 'page_url' of https://github.com/nathan3d/wagtail into nathan3d-page_url
use 'wagtail_serve' as the url name rather than 'wagtail'
Add tests for urlconfs that have wagtail_serve at a non-root path
changelog entry for #531
Merge branch 'nathan3d-page_url'
Mention South 1.0 requirement in 0.5 release notes
Add `routablepageurl` template tag

It is similar to `pageurl`, but works with `RoutablePage`s. Functions
like a hybrid between `reverse` and `pageurl`. For example:

    {% load wagtailroutablepage_tags %}
    {% routablepageurl self "feed" %}
    {% routablepageurl self "archive" 2014 08 14 %}
    {% routablepageurl self "food" foo="bar" baz="quux" %}
Merge pull request #538 from takeflight/feature/routable-page-tags

Add `routablepageurl` template tag
Changelog and release notes for #538
Improved example for 'subpage_urls' in RoutablePage documentation
Update routable_page.rst

tiny text fix
Update using_images_outside_wagtail.rst

Fix to code block syntax
Make RoutablePage a mixin

If a developer wanted to have a site-wide base page class, and also have
some pages be `RoutablePage`s, a conflict between the automatically
generated `page_ptr` fields would occur.

```python
from wagtail.wagtailcore.models import Page
from wagtail.contrib.wagtailroutablepage.models import RoutablePage

class SitePageBase(Page):
    # common functionality
    is_abstract = True
    class Meta:
        abstract = True

class MyPage(RoutablePage, SitePageBase):
    # This model is invalid
    pass
```

`RoutablePage` has been changed to be a mixin `RoutablePageMixin`. Page
classes can use this to gain the `RoutablePage` functionality while
still retaining the ability to subclass other models.

A `RoutablePage` class that derives from both `RoutablePageMixin` and
`Page` has been left in for backwards compatibility, so old code will
continue to function without any modifications.
Changelog and release notes for #560