TCs updated

Hi all

I updated the TC document with your last requests [1]
- now it's XHTML valid
- the empty R2RML TC was removed

I'm working on the Implementation Report, and I also prepared an endpoint for querying the current EARL reports [2]

Best,

Boris

[1] http://www.w3.org/2001/sw/rdb2rdf/test-cases/
[2] http://mccarthy.dia.fi.upm.es:8893/sparql