Make GICS library runnable in browsers

Now GICS library is built using babel so all code is ES5 compatible (hence runnable in all modern browsers0

Fixed example in documentation

Fixed example in docs, no code changes.

Formatting for README.md

Better readability for API documentation in README.md.
No code changes.

Changes to README.md, no code changes

v1.0.1

Added repository link in package.json

Initial release

v1.0.0

Added npmignore