BEMINFO-563 - bem-info: Language switch has been fallen

![2014-10-08_1035](https://cloud.githubusercontent.com/assets/1333220/4554842/749cdec6-4eb5-11e4-9298-2b0ae5ab87fe.png)

just created testcase:
```js
block('b1').def()(function() {
    return applyCtx({
        block: 'bla',
        mix: { block: this.block }
    });
});
```

and it works just fine.

the bug is somewhere in templates of `bem-site-engine`.

can you at least paste error log here?