Merge branch '467-set-minimum-and-maximum-length-for-usernames' into 'develop'

Resolve "Set minimum and maximum length for usernames"

Closes #467

See merge request t3o/my!188

extensions/t3omy/Configuration/TypoScript/femanager.txt

@@ -15,6 +15,8 @@ plugin.tx_femanager {
                 uniqueInLdap = 1
                 notInOldUserTable = 1
                 lowerChars = 1
+                min = 6
+                max = 30
             }
             password {
                 min = 12