GitLab

giant refactor of activity to pave the way for plugins to have their own activity types.  preliminary testing fine. needs more testing & some more changes but I think we're about back to where we were before I started hacking (with nice oo added)

Changed the add/edit/delete pages to redirect there afterwards.

But will be a good starting point for Clare.

- base class now has more functions and a few abstract ones
- edit and delete are provided by interaction/, not the plugin (with class functions to return pieforms)
- added deleted flag and creator (fk to usr) on the interaction_instance table
- added a README about how to write a new interaction plugin

Conflicts:

	htdocs/artefact/lib.php
	htdocs/lib/artefact.php

Changed all requires.
Also removed not used json/renderartefact.php

Rather than (the only example was artefact) lib/artefact.php which is non standard

Add support to the artefact chooser for a 'search' tab that allows drilling through the artefacts that can be chosen.

It works in firefox fine, and works without javascript fine (therefore it works in ie6). Opera also works. Konqueror and IE7 do not work properly.

Rather than (the only example was artefact) lib/artefact.php which is non standard

Add a two character prefix to each log line, that remains the same over the lifetime of the request. This makes it easy to distinguish lines between requests that happen at the same time.

Broke rewriting one pagination link out into a separate method, so it can be used outside this class.

allow public views setting now prevents adding and using public views

changed stylesheet so initials table no longer has a width
=> letters no longer wrap

fixed the upgrade - I have just commented this out for now because I'm pretty sure that blocktypes install themselves separately, not as part of the artefacts