 Merge branch 'ldap_check' into 'master'
 Merge branch 'ldap_check' into 'master'

gitlab:ldap:check uses LDAP user filter

8thcolor/eurucamp2014-htdsadr,8thcolor/eurucamp2014-htdsadr,8thcolor/eurucamp2014-htdsadr,8thcolor/rubyconfau2015-sadr,8thcolor/rubyconfau2015-sadr,8thcolor/rubyconfau2015-sadr