Release 4.0.0-beta1

Relax assert in AbstractBasicTest::testRequireAuth

Require phpunit <6.0.0

Release 4.0.0-alpha5

Release 4.0.0-alpha4

Release 4.0.0-alpha3

Release 4.0.0-alpha2

Fix AbstractBasicTest::testRequireAuth - the WWW-Authenticate header …

…can hold the charset

Merge pull request sabre-io#946 from fruux/carddav-addressdata-bug

Fix parsing bug for some CardDAV reports.

Prepping for a 3.2.1 release