fix bug reported by Marcus

git-svn-id: http://plugins.svn.wordpress.org/custom-post-type-permalinks/trunk@686136 b8457f37-d9ea-0310-8a92-e5e31aec5664
ver 0.8.7.6

git-svn-id: http://plugins.svn.wordpress.org/custom-post-type-permalinks/trunk@686137 b8457f37-d9ea-0310-8a92-e5e31aec5664
version up

git-svn-id: http://plugins.svn.wordpress.org/custom-post-type-permalinks/trunk@686139 b8457f37-d9ea-0310-8a92-e5e31aec5664
0.8.7.7

git-svn-id: http://plugins.svn.wordpress.org/custom-post-type-permalinks/trunk@686147 b8457f37-d9ea-0310-8a92-e5e31aec5664
Merge branch 'master' of github.com:Toro-Unit/custom-post-type-permalinks

# By Hiroshi Urabe (2) and Toro_Unit (2)
* 'master' of github.com:Toro-Unit/custom-post-type-permalinks:
  0.8.7.7
  version up
  ver 0.8.7.6
  fix bug reported by Marcus