Set version to 3.0.1 (awspring#810)

Set version to 3.0.0 (awspring#785)

Set version to 3.0.0-RC2 (awspring#735)

Set version to 2.4.4 (awspring#653)

Set version to 3.0.0-RC1 (awspring#645)

Set version to 2.4.3 (awspring#642)

Fix Maven GPG plugin version.

Set version to 3.0.0-M2 (awspring#500)

Fix docs generation (awspring#464)

Fix building docs (awspring#428)

* remove symbolic link

* cleanup