1. Fixed an issue with code showing up in excerpts.
2. Default option for display on multiple posts is now "Nothing".
3. Moved deactivation/uninstall code to new uninstall.php file.

git-svn-id: https://plugins.svn.wordpress.org/copyright-licensing-tools/trunk@1023996 b8457f37-d9ea-0310-8a92-e5e31aec5664