Fix plugin init for latest version of Contact Form 7

git-svn-id: https://plugins.svn.wordpress.org/contact-form-7-get-and-show-parameter-from-url/trunk@872842 b8457f37-d9ea-0310-8a92-e5e31aec5664
Changelog updates

git-svn-id: https://plugins.svn.wordpress.org/contact-form-7-get-and-show-parameter-from-url/trunk@872843 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update version to 0.9.6

git-svn-id: https://plugins.svn.wordpress.org/contact-form-7-get-and-show-parameter-from-url/trunk@872844 b8457f37-d9ea-0310-8a92-e5e31aec5664