* Applied a number of settings form best practices - props [Jrf](http://profiles.wordpress.org/jrf).

* Improved form support for UTF-8 - props [Jrf](http://profiles.wordpress.org/jrf).
* Corrected faulty multisite option registration - props [Jrf](http://profiles.wordpress.org/jrf).
Reverted removal of settings errors() until settings are properly validated in the right way
Stabilized error message include
Merge branch 'master' of git://github.com/jdevalk/wordpress-seo into Admin-page-header-improve

Conflicts:
	admin/class-admin.php
	admin/class-config.php
	admin/pages/metas.php
	readme.txt
Implemented an even better way for form charset support
Merge pull request #318 from jrfnl/Admin-page-header-improve

Admin settings pages Best Practices update