Reorganization - sanitzing lib folder

Created by: fearphage

This does a lot. I would normally submit multiple PRs for this, but I thought I'd try to one-shot it. This does several things:

• move sample files from lib to examples folder

• replaced gulp-eslint with eslint

• moved eslint config to package.json (and test eslint config to test/.eslintrc.json)

• all files in lib pass eslint now

• using mocha.opts file for mocha options

  Let me know what you think.

This is related to comments in (and supercedes I believe) #314.