Formatting and upgrades

[barthanssens]

Some indentation fixes, library upgrades (Jetty, Gson...) and removal of superfluous "final"

[RubenVerborgh]

Thanks, @barthanssens, will have a look at this. Note that the final is always on purpose, to indicate that the variable will not be modified. But we can indeed do without.

[barthanssens]

Meanwhile I'm reworking the code a little bit. If all goes well, I'll try to add a Jena datasource.

[mielvds]

Thanks for the help! Agreed that the final statements were a bit overdone.

Could you specify the changes you're planning to make in a separate issue? I was, for instance, planning to have a look at content negotiation.

[barthanssens]

Ok, I'll close this one and create one or two separate issues :-)
I was working on some refactoring in the servlet (making it a bit more readable) and adding a Jena datasource

[mielvds]

We should still merge this right? @RubenVerborgh?

[barthanssens]

I'll make another pull request, including your changes on content negotiation.