misc tweaks
add editorconfig
format code
setup grunt
fix jhint errors
misc tweaks
add mocha + chai
add first mocha test
add test for error when invalid unit used
add more tests + fix year conversion bug
add license
add bower.json
add changelog
update package.json & npmignore
add travis config
update readme
add minified version
Merge branch 'dev-1.1'

Conflicts:
	README.md
	package.json
	timestring.js