Release 1.5

git-svn-id: https://plugins.svn.wordpress.org/wpsolr-search-engine/trunk@1047288 b8457f37-d9ea-0310-8a92-e5e31aec5664
Release 1.5

git-svn-id: https://plugins.svn.wordpress.org/wpsolr-search-engine/trunk@1047310 b8457f37-d9ea-0310-8a92-e5e31aec5664