ansible-roles/piwik#2 Improve piwik configuration

templates/etc-php5-apache2-php.ini

@@ -716,7 +716,7 @@ default_mimetype = "text/html"
 ; to disable this feature. If post reading is disabled through
 ; enable_post_data_reading, $HTTP_RAW_POST_DATA is *NOT* populated.
 ; http://php.net/always-populate-raw-post-data
-;always_populate_raw_post_data = On
+always_populate_raw_post_data = -1
 
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