Merge branch 'release/0.2.1' into develop
 * Added documentation to fs.js
 * Added async recurse function
 * Added tests for async recurse
 * Fixed bug where async recursive functions would fail on empty directories
 * Added MIT license to package.json
 * Added stronger test case for recursive check
 * Added synchronous DFS recurse call
 * Added tests for DFS recurse call
 * Updated README to reflect additional functions
 * Updated npmignore based on documentation at https://npmjs.org/doc/developers.html
Merge branch 'release/0.3.0'