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

Object method shorthand is not supported in older browser.

lib/StyleComponent.js

@@ -1,7 +1,8 @@
 export default {
   name: 'svg2vue-style',
   functional: true,
-  render(h, ctx) {
+  // eslint-disable-next-line object-shorthand
+  render: function(h, ctx) {
     return h('style', ctx.data, ctx.children)
   }
 }