v2.1.0

1. PHPStan and Psalm generics support added:
   https://phpstan.org/blog/generics-in-php-using-phpdocs
   https://psalm.dev/docs/annotating_code/templated_annotations/
2. Update phpstan to 1.3.x;
3. Fix code style issues;

v2.0.1

Changed license to MIT

v2.0.0

v2.0.0

Up to php 7.3
Add type hints
Fully refactored
Improve tests and performance benchmarks
Improve documentation

v1.0.4

added php 8.0 to composer.json

v1.0.3

Node Item class added
New tests added

v1.0.2

Iterable -> Iterator
treeDelete method fix

v1.0.1

Fix deep recursive problem in some cases with a large amount of intervals

v1.0

Update README.md