move /admin to /supervisor (refs #3461)
move /config files in /Config source dir (refs #3461)

also move mime config files from admin
(previously renamed to supervisor)
to config
migration script for old admin/* files (refs #3461)
delete obsolete dbaccess.sh.in (refs #3461)
delete obsolete FREEDOM.vault.in (refs #3461)
put maintenance-symbol.png in Images/Core/ (refs #3461)
extract ACCESS application (refs #3461)
extract APPMNG Application (refs #3461)
extract FUSERS application (refs #3461)
extract VAULT application (refs #3461)
check admin mode in application execution (refs #3461)
correct json2 location in alleditjs.php (refs #3458)
extract FREEDOM_FRAME action (refs #3493)
do not build Api/SetDocVaultIndex.php (refs #3461)
allows admin.php in htaccess (refs #3495)
disable removed applications (refs #3461)
update translations (refs #3461)
Merge pull request #617 from CircleCode/3.2-I3461

3.2 i3461