Merge branch 'develop' into feature/uptravel

diff --cc index.php
index c0fe56a,52ffa5f..b5f3471
--- 1/index.php
--- 2/index.php
+++ b/index.php
@@@ -37,8 -37,8 +37,8 @@@
   *  so that we're sure the other add-ons see an up to date
   *  version from this plugin.
   */
- define('GLM_MEMBERS_BILLING_PLUGIN_VERSION', '1.0.20');
+ define('GLM_MEMBERS_BILLING_PLUGIN_VERSION', '1.0.21');
 -define('GLM_MEMBERS_BILLING_PLUGIN_DB_VERSION', '0.0.26');
 +define('GLM_MEMBERS_BILLING_PLUGIN_DB_VERSION', '0.0.32');
  
  // This is the minimum version of the GLM Members DB plugin require for this plugin.
  define('GLM_MEMBERS_BILLING_PLUGIN_MIN_MEMBERS_REQUIRED_VERSION', '2.8.0');