Use razor2 -
Whether to use Razor2, if it is available.
Razor fork -
Instead of running Razor2 synchronously, fork separate process for it and read the results in later (similar to async DNS lookups). Increases throughput.
Razor timeout -
How many seconds you wait for Razor to complete before you go on without the results.
Razor config -
Full path to the razor configuration file. Please note that only characters in the range [0-9A-Za-z ,._/-] are allowed for security reasons.