1.5.1 release

- readme.txt updated for 1.5.1

git-svn-id: http://plugins.svn.wordpress.org/thin-out-revisions/trunk@836462 b8457f37-d9ea-0310-8a92-e5e31aec5664
1.5.2 release

- Japanese translation corrected.

git-svn-id: http://plugins.svn.wordpress.org/thin-out-revisions/trunk@836475 b8457f37-d9ea-0310-8a92-e5e31aec5664
Merge branch 'master' of github.com:blogger323/thin-out-revisions