insert introformat-column in table registration

	modified:   ../db/install.xml
	modified:   ../db/mysql.sql
	modified:   ../db/postgres7.sql
	modified:   ../lang/en/registration.php
restore functions added

	new file:   backup/moodle2/restore_registration_activity_task.class.php
	new file:   backup/moodle2/restore_registration_stepslib.php
Final bugfixes and adaptions for Moodle 2

	modified:   backup/moodle2/restore_registration_activity_task.class.php
	modified:   db/access.php
	modified:   db/install.xml
	modified:   index.php
	modified:   lang/de/registration.php
	modified:   lang/en/registration.php
	modified:   lib.php
	modified:   print.php
	modified:   submissions.php
	modified:   upload.php
	modified:   view.php
Release 2.0.0

	modified:   version.php