install admin password field fix

Admin Password field in install form must be of type password

templates/install.tmpl

@@ -187,7 +187,7 @@
               </div>
               <div class="inline field {{if .Err_AdminPasswd}}error{{end}}">
                 <label for="admin_passwd">{{.i18n.Tr "install.admin_password"}}</label>
-                <input id="admin_passwd" name="admin_passwd" value="{{.admin_passwd}}">
+                <input id="admin_passwd" name="admin_passwd" type="password" value="{{.admin_passwd}}">
               </div>
               <div class="inline field {{if .Err_AdminPasswd}}error{{end}}">
                 <label for="admin_confirm_passwd">{{.i18n.Tr "install.confirm_password"}}</label>
@@ -210,4 +210,4 @@
 		</div>
 	</div>
 </div>
-{{template "base/footer" .}}
+{{template "base/footer" .}}