0.1.6

• Added sanitisation to querystring parameter
• Removed caching from bbconnect_personalisation_get_user_for_key() as it was causing issues on some sites
• Made sure hourly cron is always scheduled
• Updated logic for generating keys for all users to only find users who don't already have a key. Also changed it to set/unset lock for each user rather than for the entire process so that it is less likely to cause issues if the process crashes for any reason.
• Added logic to push personalisation key to MailChimp via KPI cron