0.5. Added sidebar

git-svn-id: https://plugins.svn.wordpress.org/goods-catalog/trunk@879913 b8457f37-d9ea-0310-8a92-e5e31aec5664
0.5. new files for the sidebar

git-svn-id: https://plugins.svn.wordpress.org/goods-catalog/trunk@879915 b8457f37-d9ea-0310-8a92-e5e31aec5664