v7.2.0

Improvements

• Internal refactoring #564, #565, #566, #567, #568, #569, #570, #571, #572, #573, #577, #578, #579, #580, #581, #584, #589, #590, #595 (Thanks @ikesyo)
• Make Expectation constructor public #531, #576 (Thanks @sirlantis and @ikesyo)

Bugfixes

• Fix ExpectationMessage.update(failureMessage:) not to update a FailureMessage instance with empty string #587 (Thanks @ikesyo)
• [containElementSatisfyingMatcher] Using postfixMessage would be preferable instead of overwriting to #588 (Thanks @ikesyo)