fix: add test rule for css files (egoist#26)

fix test

fix: add new lines around the svg code

fix(component): Prevent IE from throwing syntax errors (egoist#21)

Object method shorthand is not supported in older browser.

fix: include .svg in issuer

fix: add warning for .svg files that are imported by css files

fix: incorrect import, closes egoist#17

fix: bind all listeners

feat: use stateful component

- so that it works with lazy-loaded component in SSR
- less code since we no longer need to inherit attributes for functional component

closes egoist#15

Release v0.2.6