use CURRENT_TIMESTAMP in default column definitions (sqlite, mysql, postgres and oracle DO understand it), change clob columns to text (clob will give sorting and uniqueness problems and in general is not what we want)

remove superflous index (already indexed with primary key derived from <autoincrement> by MDB2), oracle will bark on this

Conflicts:
	apps/media/lib_ampache.php

Conflicts:
	lib/filesystemview.php

Conflicts:
	settings/personal.php

Conflicts:
	settings/personal.php

Conflicts:
	lib/filesystemview.php

Check if user is already logged in for DAV auth, instead of logging in and creating new sessions for every request

LDAP: check if php-ldap is installed. If not, give an error output. FIX: blank Users page when the module is not installed.

- update script to fix broken properties in the database

This reverts commit 9af74a9c.