Merge pull request #63 from phpgt/59-typed-array

feature: getTypedArray closes #59

tweak: do not double unserialize in getInstance

Merge pull request #58 from phpgt/56-get-array

feature: getArray

Merge pull request #55 from PhpGt/ci

CI

Merge pull request #15 from PhpGt/14-nested-directories

feature: allow nested directories

Merge pull request #2 from PhpGt/1-typesafegetter

Type safety

docs: add readme and example