fix: break/continue omitting output before them, #123

BREAKING CHANGE: remove default export, now should be used like import
{Liquid} from 'liquidjs'

src/template/template.ts

@@ -1,4 +1,4 @@
-export default abstract class Template<T> {
+export abstract class Template<T> {
   public token: T;
   public constructor (token: T) {
     this.token = token