0.9.0 (Major Release)

Good bye date_of_episode, discharge_date, date_of_admission

And hello episode.start and episode.end. These fields on the Episode model
replace the multiple ways of recording Episode duration in Opal.

There is a migration that sets start to date_of_episode if it exists, otherwise
it uses date of admission.

end will be date_of_episode if it exists, otherwise it will use discharge_date.

Note that this means we no longer refer to start and end properties on the
Episode category. If you override start and end in a custom episode category
you should update to use the Episode model fields. This logic should be moved into
your flows and you'll need to put in a migration to populate existing
episodes.

We also remove the episode fields date_of_episode discharge_date, and
date_of_admission.
Warning: Backwards migrations will not migrate back to date_of_episode but to
a admission and discharge. Take backups before running these migrations!

The fields start and end are both cast to moments (rather than raw js Dates) on
episode.initialisation

Pathway

Moves the opal-pathway module into the opal core. Pathways is an extensible way
of creating forms that involve multiple subrecords.

We've got time on our side

Adds in the {% timepicker %} template tag, that follows the same convention as
the other template tags, ie {% timepicker field="Dinner.time" %}

Removes a js global declaration of categories

Previously we declared CATEGORIES globally. This has now been removed

Order Order

Episodes in the patient list are now ordered by start, first_name and surname

Theming support

Improvements and better documentation and guides for theming applications. Particularly
of note are changes to opal.html and base.html, as well as the addition of the
static_page.html template.

This version also includes extensive improved support for customising the templates that
display patient lists, detail views, menus and forms amongst other things.

For full documentation, consult the theming guide in the documentation.

Makes search fully pluggable

Search is now completely pluggable, you need to have some angular controller
called SearchCtrl, but apart from that you can plugin your own implementation.

Exclude prefixes now work on actual paths

Previously they only worked with angular paths, now they work
with a combination of actual paths and angular url paths (e.g. /search/#/extract)

Misc Changes

Add the allow_add_patient and allow_edit_teams options to the patient lists.

We added support for a --file or -f option for the load_lookup_lists command which
allows the user to specify a particular file outside of the default locations.

The default Location record display template will no longer include references
to Episode.start. and Episode.stop labelled as admisssion and discharge to support
the majority case where an episode relates to something other than an inpatient episode!

Applications wishing to retaint this functionality should update their own temaplates
to display start/stop details.

Removes Deprecated functionality in ReferenceData, Metadata, UserProfile and recordLoader

Previously these would make their http request when imported into a file. They now require you to call .load()
for them to return the promise that loads in their respective data.