updates for latest nette/latte

Merge pull request #104 from Zarganwar/master

Variables wrapped into curly brackets due to future latte/latte 'User…

Fix for latte 2.9.0

Use Template.hasBlock method instead of removed Template.blockQueue property.

Merge pull request #98 from smartemailing/fix-nette3.0

Fixed persistent parameters

Compatibility with Nette 3 - type hints & dependencies (#95)

redrawControl: fixed reverting of redraw

PHP 7.2 compatibility (#89)

js: added nittro lib

added support for custom cell rendering in inline edit mode [closes #31]

composer: added latte as dependency