Specify development dependencies.
Use the N3.js library.
Require the N3.js library for the Node version.
Require the N3.js lexer and parser for the browser version.
Require the N3.js lexer and parser for the persistent browser version.
Update N3.js usage statement in README.
Merge pull request #61 from RubenVerborgh/n3-integration

Integrate N3.js (node-n3) parser directly with rdfstore-js