Fixed the user interface to properly display the units of measure for the mail quota.

Author: quentusrex

interface/web/mail/templates/mail_user_mailbox_edit.htm

@@ -14,7 +14,7 @@ <h2><tmpl_var name="list_head_txt"></h2>
         <input type="password" id="password" name="password" value="{tmpl_var name='password'}" size="30" maxlength="255">
       </span>
       <span class="wf_oneField">
-        <label for="quota" class="wf_preField">{tmpl_var name='quota_txt'}</label>
+        <label for="quota" class="wf_preField">{tmpl_var name='quota_txt'} in MB</label>
         <input type="text" id="quota" name="quota" value="{tmpl_var name='quota'}" size="30" maxlength="255">
       </span>
       <span class="wf_oneField">