Update dataform to version 2.3.0b
#19 Set value type of 'param6' to PARAM_EMAIL
#1 Implement 'teammemberselect' field type
#3 Implement entry submission status

Conflicts:
	version.php
#9 Implement entry approval using AJAX
#5 Implement :restricted field tag
#6 Implement auto complete functionality for team member select field
#26 Fix approval status icons
#24 Implement approval-based completion functionality
#25 Implement choice limit for select field
#27 Fix bug
#25 Implement selection limit option for dataformfield_select
#28 Fix $entry->status not defined warning when creating new entry
#29 Update backup/restore scripts to account for new DB fields
#11 Fix filtering when using 'approved' field as a search condition
#21 Replace old icon with a Moodle 2.4 compatible icon
#13 Include all users with 'writeentry' cap in ##author:edit## list

NOTE: This tag was disabled in both versions of the code!
#30 Fix warning when editing duration field
#35 Fix bug causing a fatal error
#4 Implement bulk update functionality for tabular views