Fixed regression for dynamic parent
Adding example with ``not`` for ``if``

I could not find an example with ``not``, so I added it here.
Add display information to slice example
The results of is_dir() are cached

So before calling is_dir() for the second time, clearstatcache of the dir
bug #1583 The results of is_dir() are cached (THofman)

This PR was merged into the 1.16-dev branch.

Discussion
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The results of is_dir() are cached

If a production server uses statcache, the results of the first and second call of is_dir() is always the same.
So before calling is_dir() for the second time, use clearstatcache() to clear the results of the first call of is_dir().

Commits
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df0d813 The results of is_dir() are cached
updated CHANGELOG
minor #1582 Add display information to slice example (paulmallet)

This PR was merged into the 1.16-dev branch.

Discussion
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Add display information to slice example

Displays the result of the example operation {{ '12345'[1:2] }} in the "slice" filter documentation

Commits
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d5fe413 Add display information to slice example
minor #1581 Adding example with ``not`` for ``if`` (InFog)

This PR was merged into the 1.16-dev branch.

Discussion
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Adding example with ``not`` for ``if``

I could not find an example with ``not``, so I added it here.

Commits
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4a75e40 Adding example with ``not`` for ``if``
bug #1579 Fixed regression for dynamic parent (hason)

This PR was merged into the 1.16-dev branch.

Discussion
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Fixed regression for dynamic parent

Fixes #1578

Commits
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d2fc98d Fixed regression for dynamic parent
updated CHANGELOG
prepared the 1.16.3 release
bumped version to 1.16.4-DEV