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

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

src/template/value.ts

@@ -1,8 +1,8 @@
 import { parseExp } from '../render/syntax'
 import { FilterArgs, Filter } from './filter/filter'
-import Context from '../context/context'
+import { Context } from '../context/context'
 
-export default class Value {
+export class Value {
   private strictFilters: boolean
   private initial: string
   private filters: Filter[] = []
@@ -47,10 +47,10 @@ export default class Value {
     }
     this.filters.push(new Filter(name, args, this.strictFilters))
   }
-  public async value (ctx: Context) {
-    let val = await parseExp(this.initial, ctx)
+  public value (ctx: Context) {
+    let val = parseExp(this.initial, ctx)
     for (const filter of this.filters) {
-      val = await filter.render(val, ctx)
+      val = filter.render(val, ctx)
     }
     return val
   }