Documentation updated

Typos in README.md fixed:

• #18, thanks to @igorbabko for spotting the typo
• #19, thanks to @mindaugasvcs for spotting the typo

Graphical layout updated

This version:

• adds TypeScript definitions as suggested in #13;
• adapts the height margin of the flag according to the selected size. This fixes what described in #14.

Update to SFC Rollup

This version:

• Fixes #11;
• Updates the component as a proper SFC

v1.1.1

This release fixes the icon flag resizing for IE (version 9 and above).

v1.1.0

This release introduces the support for the ISO-3166-1 three-letter country codes (alpha 3).