Fix for three manifest turtle issues

http://rdfa.info/test-suite/rdfa1.1/xml/manifest turtle has three issues:

  * The initial list statement is unterminated. line 133
  * Test classification url is bare, no <>. e.g. line 138
  * test:specificationReference statements have no subject. e.g. line 960

The fix for the last leaves the output a little ragged, btw.