do not break on precompiled templates from Handlebars >=4.0.0 <4.3.0

- The version-range above have compiler version 7 and
  precompiled templates expecte the (block)
  HelperMissing-functions in "helpers" and not in "container.hooks".
- Handlebars now accepts precompiled templates of version 7.
- If a precompiled template with version 7 is loaded,
  the (block)HelperMissing-functions are kept in "helpers"

spec/runtime.js

@@ -21,7 +21,7 @@ describe('runtime', function() {
       shouldThrow(function() {
         Handlebars.template({
           main: {},
-          compiler: [Handlebars.COMPILER_REVISION - 1]
+          compiler: [Handlebars.LAST_COMPATIBLE_COMPILER_REVISION - 1]
         });
       }, Error, /Template was precompiled with an older version of Handlebars than the current runtime/);
       shouldThrow(function() {