Merge branch 'release/0.6.0' into develop
Fix for potential static instance bug.
Composer update.
Archer update.
Fix broken links in contribution guidelines. [ci skip]
Quick filter for edge cases like $path='/A///B///C' that isn't filtered correctly
Tests for #38, also fixed Windows path factory.
Archer update.
Updated changelog, readme.
Updated contribution guidelines.
Merge branch 'release/0.6.1'