v1.2.0

• SortedMap and MultiMap structures
• More unit tests and testdox annotations
• More concise README

v1.1.1

• PHPCS revised and fixed.
• Changed .gitignore.

v1.1.0

• Matrix class added, with a full set of operations with matrices
• PHPunit tests deprecations fixed
• README updated

v1.0.1

• Linting and fixes on coding standards
• Minor README changes

v1.0.0

Update README.md