This files describes API changes in /blocks/* - activity modules,
information provided here is intended especially for developers.

=== 2.0 ===

required changes in code:
* use new DML syntax everywhere
* use new DDL syntax in db/upgrade.php
* replace defaults.php by settings.php and db/install.php
* replace STATEMENTS section in db/install.xml by db/install.php
* move post instalation code from install() method into db/install.php
* completely rewrite file handling
* rewrite backup/restore

optional - no changes needed in older code:
*


TODO: add links to docs