This is the first 7.x release candidate. The keyword_rules module has to be configured on the content type under the section SEO Compliance Checker in order to work properly.
This release candidate should be fully functional. I want to wait for some feedback before I release the first stable version though.
Note that under version 2.x of the SEO Compliance Checker the sliders require JQuery UI 1.7.x to be installed! So if you upgrade from 1.x to 2.x, upgrade your jquery_update module and the JQuery UI library as well!
The checkbox "Allow check failures" had no effect. With this release, the admin can not only choose if he wants to allow check failures but also in what cases results shall be displayed.
Sorry for the confusing version numbers. I messed up with my tags in the beginning but it will be continuous from now on. So this is the release candidate 1 for Version 1.1. Still waiting for some more user input in order to move to a stable version 1.1.