Add commonjs support and metadata to package.json

[mattlewis92]

Closes #27

[dbtek]

Oh, that was fast! Thanks @mattlewis92.

I don't know about the style field but, index.js should be in the main field value, shouldn't it?

[dbtek]

Actually as it's name is 'index.js' there is no necessity for main field. browser field is for bundlers only I guess.

[mattlewis92]

Yup browser is a non standardised field but used by the main module bundlers (i.e. webpack + browserify) to indicate that this is the entry point for a browser module.

[dbtek]

It's ok then. Adding .npmignore file is the only thing to do before merge.
Contents would be:

src
test
Gruntfile.js
bower.json
karma.conf.js
.jshintrc

[mattlewis92]

Good shout, I've added that now :)

[dbtek]

Thanks a lot @mattlewis92. Appreciated ☺️

[mattlewis92]

NP, happy to help, thanks for getting back to me so quickly! 😄