Improvements on README, examples and Maven example

[szarnyasg]

I worked a bit on EMFTriple's code. The changes include:

• Lots of updates in the README
• Bumped Tycho version
• Added Maven example project
• Added support for N-Triples
• Added Jena and Sesame examples as Main classes.
• Fixed Jena tests
• Removed unused options arguments

[ghillairet]

Thanks I'll look at it asap.

[ghillairet]

Merged, thanks. I'll release a new version soon.