removed node_modules from repo
better gulpscript (paths, helpers, tasks)
gulped mocha and added coverage (istanbul)
removed '*' version from devDependencies in package.json
removed submodule with node-rdf repo with implemented TripletGraph.removeMatches, instead it rewrites it in it's prototype (submoduling does not worth the effort)
reorganized docs folders
added an example to generate Turtle output from a Resource
updated README.md