add support for generated columns

See merge request !54

ci: test on all supported versions of php

See merge request !53

more robust creation/modification API

Closes #21 and #8

See merge request !50

- change new() and edit() to return changeSet
- split save() into insert(), update(), and insertOrUpdate()

allow dibi 5

See merge request !52

implement ordering by specific values

See merge request !51

Support nette/utils v4

See merge request !48

throw when missing primary index

See merge request !47

initializeDatabase: add parameter to reset

See merge request !46

Add imprecise FloatType

See merge request !45

CompositeType: add explicit type cast to support composite values in WHERE clause

Closes #26 and #25

See merge request !40

This reverts commit 1fcbe30a.