Fixed the template of the metadata overview to use legal and unique ID attributes at the div elements by using base64 encoding of the header of the section concatenated with the entity ID. Also replacing '=' with '_' to be legal IDs.


git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@421 44740490-163a-0410-bde0-09ae8108e29a