version number fix

git-svn-id: https://plugins.svn.wordpress.org/loco-translate/trunk@810050 b8457f37-d9ea-0310-8a92-e5e31aec5664
updated readme

git-svn-id: https://plugins.svn.wordpress.org/loco-translate/trunk@810052 b8457f37-d9ea-0310-8a92-e5e31aec5664