Update AnnotationMatcher.php

Allow fqn as annotation name in phpdoc
Update Addendum.php

Enable partial matching of class names using real PHP namespaces in the same fashion as 'fake' namespaces (using _ ) where matched.
Allow direct registering of annotations to avoid the error prone matching procedure.

For example:

Addendum::register("Authorise","MyVendor\Annotations\Authorise")
Merge pull request #2 from Devristo/master

Some more namespacing fixes