fix any bug.

app/controllers/boards_controller.rb

@@ -29,7 +29,7 @@ class BoardsController < ApplicationController
 
   def index
     @boards = @project.boards.includes(:last_message => :author).all
-    @boards = [] << @boards[0]
+    @boards = [] << @boards[0] if @boards.any?
     if @boards.size == 1
          @board = @boards.first
      show and return

app/views/tags/_tag.html.erb

@@ -2,7 +2,7 @@
 	<!-- 1代表是user类型   2代表是project类型  3代表是issue类型 4代表的是bid类型 5代表的是forum类型  -->
 	<!--  3 代表的是issue 当是issue是 处理方式与前2个对象不同 -->
 	<% if object_flag == '3' %>
-		<span><%= image_tag("/images/sidebTar/tags.png") %></span>
+		<span><%= image_tag("/images/sidebar/tags.png") %></span>
 		<span class="font_title_tag"><%= l(:label_tag) %>:</span>
 		<% if User.current.logged? %>
 		<span> <%= toggle_link (image_tag "/images/sidebar/add.png"), 'put-tag-form-issue', {:focus => 'name-issue'} %></span>