Improve group edit page for admins

Add autocomplete selectbox for ldap group name.
Fixed align of LDAP settigs block
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/views/admin/groups/edit.html.haml

@@ -26,19 +26,30 @@
         %li It will change web url for access group and group projects.
         %li It will change the git path to repositories under this group.
 
-  %hr
 
-  .clearfix
-    = f.label :ldap_cn do
-      LDAP Group cn
-    .input
-      = f.text_field :ldap_cn, class: "xxlarge left"
+  %fieldset
+    %legend LDAP group settings
+    %div.form-holder
+      = form_for @group do |f|
+        .form-group.clearfix
+          = f.label :ldap_cn, class: 'control-label' do
+            LDAP Group cn
+          .col-sm-10
+            = f.hidden_field :ldap_cn, placeholder: "Ex. QA group", class: "xxlarge ajax-ldap-groups-select input-mn-300"
+            .help-block
+              Synchronize #{@group.name}'s members with this LDAP group.
+              %br
+              If you select an LDAP group you do not belong to you will lose ownership of #{@group.name}.
 
-  .clearfix
-    = f.label :ldap_access do
-      LDAP Access
-    .input
-      = f.select :ldap_access, options_for_select(UsersGroup.group_access_roles, @group.ldap_access)
+        .form-group.clearfix
+          = f.label :ldap_access, class: 'control-label' do
+            LDAP Access
+          .col-sm-10
+            = f.select :ldap_access, options_for_select(UsersGroup.group_access_roles, @group.ldap_access)
+            .help-block
+              Default, minimum permission level for LDAP group members of #{@group.name}.
+              %br
+              You can manage permission levels for individual group members in the Members tab.
 
   .form-actions
     = f.submit 'Save changes', class: "btn btn-primary"

app/views/groups/edit.html.haml

@@ -71,7 +71,7 @@
                 = f.label :ldap_cn, class: 'control-label' do
                   LDAP Group cn
                 .col-sm-10
-                  = f.hidden_field :ldap_cn, placeholder: "Ex. QA group", class: "xxlarge ajax-ldap-groups-select"
+                  = f.hidden_field :ldap_cn, placeholder: "Ex. QA group", class: "xxlarge ajax-ldap-groups-select input-mn-300"
                   .help-block
                     Synchronize #{@group.name}'s members with this LDAP group.
                     %br