Required software:
Zope	http://www.zope.org
PyXML	http://pyxml.sourceforge.net/
PlacelessTranslationService	http://sourceforge.net/projects/collective/
PIL	http://www.pythonware.com/products/pil/ (with jpeg support)
	jpeg-6b libraries can be found at ftp://ftp.uu.net/graphics/jpeg/

Upgrading from IVA 0.6 to 0.6.1
===============================

I assume you already have IVA downloaded from http://www.htk.tpu.ee/iva

1. unpack iva in to zope's products directory, replacing old IVA files.
2. restart zope
3. in ZMI go in to IVA folder and click 'Tools' tab located on top-right corner.
4. click on reload everything button

Upgrading from IVA 0.4.2 to IVA 0.6
===================================

We recommend creating a new Zope instance for testing the upgrade ... as there
may occur some errors.

Step 1.
From http://www.htk.tpu.ee/iva download IVA 0.4.2 upgrader, basically it is IVA 0.4.2 with some 
extra export functionality.
Unpack it to zope's products directory, replacing the IVA 0.4.2 installation.
Restart your zope and under ZMI in IVA folder, click Tools tab and click on courses
you wish to have in your new IVA. If you have many courses and you need them all, then
you can use tools like wget to export all courses.


Step 2.
Now you should have many zip files in your zope's var directory. Move these zip
files to your zope's import directory(../import).
Download IVA from http://www.htk.tpu.ee/iva, unpack it to your zope's products directory, 
replacing the previous IVA directory. Better, remove the old IVA directory and then unpack
the IVA 0.6 to there.
Restart Zope.
Log in to ZMI and add IVA. 
Now you should have a brand new IVA instance.
For importing courses, in IVA, click 'Courses management' -> 'import course' and the top of
the page, you can upload a zip file. Under that, there is a list of zip files. 
Note that, if you import one zip/course twice, you get two courses.
Also, there are two zip files - ivamessages.zip and iva_events.zip. First zip holds
Users mailboxes and second zip contains users events.


