New features

A base theme for Varbase standard websites. Based on Bootstrap theme with Bootstrap 3 and Material Design.

Issue #2928293 by GaëlG: /saml_login?ReturnTo= doesn't work
Issue #2935045 by George Bills: Log redirect inside SimplesamlphpAuthController::authenticate
Issue #2932365 by timwood: Upgrade simplesamlphp library to 1.14.17

Handle anonymous users when adding log entry (and rare cases where user name might stay empty).

First release of Acquia Purge Cloudflare.