v1.0.0 RC1

• New: Added composer PSR4 autoloading
• New: Added mbstring polyfill for better compatibility
• New: Removed old notification about deprecated APC support
• New: Rewrote the requirement check system
• New: Removed the PRO version front-end references
• New: Moved the assets to own assets/ directory
• New: Updated conflicting plugins
• New: Removed old database migrations
• New: Updated documentation https://github.com/megaoptim/rapid-cache/wiki
• New: Added developer functions: rapidcache_get_version(), rapidcache_clear_cache(), rapidcache_clear_post_cache($post_id), rapidcache_clear_url_cache($url), rapidcache_wipe_cache(), rapidcache_purge_expired_cache(), rapidcache_get_options()
• New: Added rapid_cache_ob_callback_filter that allow to filter the page output before saving into cache
• New: Add Referrer-Policy to cacheable headers list
• New: Add actions: rapid_cache_wipe_cache, rapid_cache_clear_cache, rapid_cache_purge_cache, rapid_cache_wurge_cache
• Fix: 'Non static method should not be called statically
• Fix: 'Headers already sent' warnings
• Fix: 'Notice: id was called incorrectly. Product properties should not be accessed directly.' warning with WooCommerce
• Fix: Warnings when disk_*_space functions are disabled