Update Template7
Update Template7

* Support for root context that may be used in templates as
`{{@root.someVar}}`
* Improved support for paths:
    * Support to access arrays directly by index `{{someArray.2}}`
    * Better support for context "level up" `{{../../../someVar}}`
* New JS helpers with direct JS execution:
    * `{{js "this.price * 2"}} - inline helper to modify context on the
fly
    * `{{#js_compare "this.price > 1000"}}Too expensive{{/js_compare}}
- block helper for easier compares of variables

Janusorz/Framework7,Janusorz/Framework7,Janusorz/Framework7