Update on Group Editor explanation of how Security Groups work

New information about how users are then inherited and how possible security group loops are shown (the checkbox is not checked and is disabled).

language/english.php

@@ -1652,7 +1652,7 @@
     'yes' => 'Yes',
     'no' => 'No',
     'corerightsdescr' => "This group is a core {$_CONF['site_name']} Group.  Therefore the rights for this group cannot be edited.  Below is a read-only list of the rights this group has access to.",
-    'groupmsg' => 'Security Groups on this site are hierarchical.  By adding this group to any of the groups below you will be giving this group the same rights that those groups have.  Where possible it is encouraged you use the groups below to give rights to a group.  If you need this group to have custom rights then you can select the rights to various site features in the section below called \'Rights\'.  To add this group to any of the ones below simply check the box next to the group(s) that you want. Groups that are checked but disabled are inherited groups from other groups that belongs directly to this group.',
+    'groupmsg' => 'Security Groups on this site are hierarchical. By adding this group to any of the groups below you will be giving this group the same rights that those groups have. It also means that users which belong directly to this Group will be inherited by the groups it belongs to.<br' . XHTML . '><br' . XHTML . '>Where possible it is encouraged you use the groups below to give rights to a group. If you need this group to have custom rights then you can select the rights to various site features in the section below called \'Rights\'. To add this group to any of the ones below simply check the box next to the group(s) that you want.<br' . XHTML . '><br' . XHTML . '>Groups that are checked but disabled are inherited groups from other groups that belongs directly to this group. Groups that are disabled and not checked are groups that cannot be added since it would create a security group loop.',
     'coregroupmsg' => "This group is a core {$_CONF['site_name']} Group.  Therefore the groups that this group belongs to cannot be edited.  Below is a read-only list of the groups this group belongs to.",
     'rightsdescr' => 'A group\'s access to a certain right below can be given directly to the group OR to a different group that this group is a part of.  The ones you see below with a disabled checkbox (that is checked) are the rights that have been given to this group because it belongs to another group with that right.  The rights with checkboxes below are rights that can be given directly to this group.',
     'lock' => 'Lock',

language/english_utf-8.php

@@ -1652,7 +1652,7 @@
     'yes' => 'Yes',
     'no' => 'No',
     'corerightsdescr' => "This group is a core {$_CONF['site_name']} Group.  Therefore the rights for this group cannot be edited.  Below is a read-only list of the rights this group has access to.",
-    'groupmsg' => 'Security Groups on this site are hierarchical.  By adding this group to any of the groups below you will be giving this group the same rights that those groups have.  Where possible it is encouraged you use the groups below to give rights to a group.  If you need this group to have custom rights then you can select the rights to various site features in the section below called \'Rights\'.  To add this group to any of the ones below simply check the box next to the group(s) that you want. Groups that are checked but disabled are inherited groups from other groups that belongs directly to this group.',
+    'groupmsg' => 'Security Groups on this site are hierarchical. By adding this group to any of the groups below you will be giving this group the same rights that those groups have. It also means that users which belong directly to this Group will be inherited by the groups it belongs to.<br' . XHTML . '><br' . XHTML . '>Where possible it is encouraged you use the groups below to give rights to a group. If you need this group to have custom rights then you can select the rights to various site features in the section below called \'Rights\'. To add this group to any of the ones below simply check the box next to the group(s) that you want.<br' . XHTML . '><br' . XHTML . '>Groups that are checked but disabled are inherited groups from other groups that belongs directly to this group. Groups that are disabled and not checked are groups that cannot be added since it would create a security group loop.',
     'coregroupmsg' => "This group is a core {$_CONF['site_name']} Group.  Therefore the groups that this group belongs to cannot be edited.  Below is a read-only list of the groups this group belongs to.",
     'rightsdescr' => 'A group\'s access to a certain right below can be given directly to the group OR to a different group that this group is a part of.  The ones you see below with a disabled checkbox (that is checked) are the rights that have been given to this group because it belongs to another group with that right.  The rights with checkboxes below are rights that can be given directly to this group.',
     'lock' => 'Lock',

language/japanese_utf-8.php

@@ -1653,7 +1653,7 @@
     'yes' => 'はい',
     'no' => 'いいえ',
     'corerightsdescr' => "このグループは、{$_CONF['site_name']}の「コア(中核)グループ」です。そのため、このグループの権限を編集することはできません。このグループの権限リストを読み取り専用で以下に表示しています。",
-    'groupmsg' => 'このサイトのセキュリティグループは階層をなしています。このグループを下記のどのグループに追加しても、このグループに下記のグループと同じ権限を与えることになります。可能な場合には、下記のグループを指定することをお勧めします。カスタムの権限のためにこのグループが必要なら、下記の「権限」のセクションから選んでください。このグループを下記のグループに追加するには希望のグループの隣にあるチェックボックスをチェックしてください。チェックが入っていて選択不可になっているグループはこのグループが直接に属している他のグループから継承されたグループです。',
+    'groupmsg' => 'Security Groups on this site are hierarchical. By adding this group to any of the groups below you will be giving this group the same rights that those groups have. It also means that users which belong directly to this Group will be inherited by the groups it belongs to.<br' . XHTML . '><br' . XHTML . '>Where possible it is encouraged you use the groups below to give rights to a group. If you need this group to have custom rights then you can select the rights to various site features in the section below called \'Rights\'. To add this group to any of the ones below simply check the box next to the group(s) that you want.<br' . XHTML . '><br' . XHTML . '>Groups that are checked but disabled are inherited groups from other groups that belongs directly to this group. Groups that are disabled and not checked are groups that cannot be added since it would create a security group loop.',
     'coregroupmsg' => "本グループは{$_CONF['site_name']}の「コア(中核)グループ」です。そのため、本グループの所属するグループは編集できません。このグループの権限リストを読み取り専用で以下に表示しています。",
     'rightsdescr' => '下記の権限は、任意のグループないし任意のグルプープが属している別のグループに直接与えることができます。(チェックが入っていて)選択できないチェックボックスのある権限は、その権限を持つ別のグループに属しているためにこのグループに与えられている権限です。下記のチェックボックスのある権限は、このグループに直接与えることができる権限です。',
     'lock' => 'ロック',