Use short-circuit evaluation at And and Or operators.

[bmateusz]

The reason of this PR that if we are in strict variables mode, then it is not good to check both sides of an And or Or expression.

Small example:
{% if context.isSpecial and context.special.value == "something" %}

It would not work because the right side is evaluated as well and the strict value check would throw an exception.

Current workaround is a nested if:
{% if context.isSpecial %}{% if context.special.value == "something" %}

That version is too verbose in my opinion.

It does not change the behavior if the strict variable check is turned off.
@bkiers what do you think?

[bkiers]

Yeah, good point!

Thanks @bmateusz.