v1.0.15

• Allow to modify the tracked user ID using the filter
  "wp-piwik_tracking_user_id"
• Bugfix: Output of "post" shortcode was incorrectly placed, see
  https://wordpress.org/support/topic/post-shortcode-values-are-incorrectl
  y-placed/
• Bugfix: Usage of WP_PROXY_BYPASS_HOSTS, see
  https://wordpress.org/support/topic/bug-considering-wp_proxy_bypass_host
  s-in-proxy-setups/
• Bugfix: Proxy script did not work with cURL, see
  #48
• Bugfix: RSS feed tracking did not use proxy URL