This class provides a separate new-able instance of the
Velocity template engine. The alternative model for use
is using the Velocity class which employs the singleton
Please ensure that you call one of the init() variants.
This is critical for proper behavior.
Coming soon : Velocity will call
the parameter-less init() at the first use of this class
if the init() wasn't explicitly called. While this will
ensure that Velocity functions, it almost certainly won't
function in the way you intend, so please make sure to