Update manager.php

add caching to getUserGroupIds
Update manager.php

added description and blank lines in getUserGroupIds
Update manager.php

defined $uid in getUserGroupIds
Update manager.php
Update manager.php
Update manager.php
clean up function getUserGroupIds

clean up of function getUserGroupIds and improved caching mechanism of cachedUserGroupIds
modified caching mechanism in getUserGroupIds

removed cachedUserGroupIds, instead changed indexing in getUserGroups to groupId
adapted tests for a groupId indexed group array
make sure class file is loaded once
fixing windows max depth test
add checkbox for experienced users to server tab
must be empty not auto
sets user filters to raw mode when marking user as experienced
Objectlasses, Groups and Attributes are now loaded only in assisted mode and only once
user and group counts are only upated on demand in experienced mode
confirmation before switching to assisted mode when admin is experienced
rename internal var name to avoid collision
more beautiful white spaces
smaller corrections to make scruitinizer happier, no effective changes