LDAP: put out fetching of user meta data into a fully tested class of its own and update them (mail, quota, etc.) directly after mapping. Fixes #7785 properly on master
adjust Access test
fix parameter order
adjust user backend test
precaution: lowercase string for comparison
port of PR #8038
adjust test to changed convention in storing quota
newlines
class descriptions
clean up
adjust group tests
get rid of @read in PHP doc after rebase
Merge pull request #7930 from owncloud/fix_7785_master

LDAP: put out fetching of user meta data into a fully tested class of it...