Fix broken link to TriG syntax specification.

[cmarat]

The link http://www.w3.org/2010/01/Trig/Trig in the comment is dead, I suggest to change it to the latest published W3C recommendation.

[coveralls]

Coverage remained the same when pulling 04a019e on cmarat:patch-1 into b6eb1b1 on RDFLib:master.

[coveralls]

Coverage decreased (-0.01%) when pulling 04a019e on cmarat:patch-1 into b6eb1b1 on RDFLib:master.

[joernhees]

thanks

[gromgull]

This touches on a bigger issue - the trig that we implement is not actually the newest spec, but only the old one :)

We whould really include the new trig test-suite and fix up the parser/serialiser to conform.

[cmarat]

@gromgull indeed, it's quite out of date. Sesame is unable to load TriG produced by rdflib because of '=' between graph names and triples. Do you plan to work on the parser/serializer soon? I could try to fix this small issue, but it does not make sense if you're working on full spec conformance.

[gromgull]

Adding the new trig tests and fixing up our parser/serializer is quite high on my list of things to do when I have some time for rdflib again. I don't know about "soon" though - it depends on your definition :)