Update .jshintrc to conform to jQuery standard - Closes #56
fixing comma position :(
README: Add build status badge and minor clean up

Use the same level 2 heading syntax for consistency (not mixing
the ------------ and ## syntax).

Minor copy-edit:
- Space
- Sentence case
- No colon at the end of a heading
- Identation fix in the html sample
updating to 2.1.2 in readme
Added CONTRIBUTING.md.
Build: Update to node-testswarm 1.x