GoCardless Payments + Automatic Foreign Exchange v1.0.7

• Add: Allow customer to set default mandate to be used for fast-track purchases
• Add: Admin phrases for mollie_api_key
• Add: Build process enables global autofx by default on new installs
• Add: Config.php is packed as Config.php.txt and only copied on first install
• Upgrade: Upgrading guzzlehttp/guzzle (7.10.0 => 7.10.5)
• Upgrade: Upgrading guzzlehttp/promises (2.3.0 => 2.4.1)
• Upgrade: Upgrading guzzlehttp/psr7 (2.8.0 => 2.10.4)
• Upgrade: Upgrading monolog/monolog (2.10.0 => 2.11.0)
• Upgrade: Upgrading symfony/deprecation-contracts (v3.6.0 => v3.7.0)
• Fix: Fix gc_return boolean to match buildUrl and returnUrl on actionThanks()