- tests & coverage
- rm _.isEmpty(arr) case
	modified:   README.md
	modified:   app.js
	new file:   coverage/coverage.json
	new file:   coverage/lcov-report/index.html
	new file:   coverage/lcov-report/lib/collections.js.html
	new file:   coverage/lcov-report/lib/default.js.html
	new file:   coverage/lcov-report/lib/generic.js.html
	new file:   coverage/lcov-report/lib/index.html
	new file:   coverage/lcov-report/lib/net.js.html
	new file:   coverage/lcov-report/lib/utils.js.html
	new file:   coverage/lcov-report/prettify.css
	new file:   coverage/lcov-report/prettify.js
	new file:   coverage/lcov.info
	new file:   lib/ini_cd.js
	renamed:    lib/ini.js -> lib/ini_mp.js
	modified:   lib/observe.js
	modified:   lib/utils.js
	deleted:    test/test.md
	modified:   test/utils.test.js