Added: Automatic disabling of Walkscore API if API key is deleted.
Added: flush_rewrite_rules on slug save.
Added: Cron sync before hook (realtypress_before_cron_sync).
Added: Cron sync after hook (realtypress_after_cron_sync).
Fixed: Language loading error when saving some general options.
Fixed: phRETS library double utf-8 encoding.