updating the company name, description and readme. 

git-svn-id: https://plugins.svn.wordpress.org/mailin/trunk@846270 b8457f37-d9ea-0310-8a92-e5e31aec5664
fix a typo

git-svn-id: https://plugins.svn.wordpress.org/mailin/trunk@846272 b8457f37-d9ea-0310-8a92-e5e31aec5664