Strip HTML tags and disable HTML escaping when viewing stored data.
Dirty patch to make sure `searchindex` exists on *really old* versions of Haystack, because I needed to be able to check something on an old project.
Restore 1.3.x compatibility, which didn't have truncatechars. Still require Django 1.3.1+
In the absence of a specific setting for pagination, follow the default ModelAdmin’s.
Don't call more_like_this for the data view if no object exists in the database for this item, for whatever reason.
Ever hidden the labels in the changelist-search form in the standard Django admin? I have. This at least offers an escape hatch to unhide them.
Fixes doing something like:
```
#changelist-search label {
    display: none;
}
```
Implements idea I outlined in #11 - Output both raw and escaped values in the data list view.