New version with refactored code. Added translations and tests.

git-svn-id: https://plugins.svn.wordpress.org/kilroy-was-here/trunk@963344 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added missing files

git-svn-id: https://plugins.svn.wordpress.org/kilroy-was-here/trunk@963345 b8457f37-d9ea-0310-8a92-e5e31aec5664