* Now checking ICL_LANGUAGE_CODE instead of $_REQUEST['lang'] to support WPML using different language URL formats.
* Wrapped message in applydiscount code for translation.
* Unsetting $all_membership_levels[$user_id] at the bottom of pmpro_changeMembershipLevel().
* Added $force parameter to pmpro_getMembershipLevelForUser($user_id, $force). If set to true, it will ignore the cached value and pull the level from the DB.
Merge branch 'dev' of github.com:strangerstudios/paid-memberships-pro into dev