Builds the output based upon a string and any
data that has already been set.
Cache does not apply, because there is no "key".

@param string  $view     The view contents
@param array   $options  Reserved for 3rd-party uses since
it might be needed to pass additional info
to other template engines.
@param boolean $saveData If true, will save data for use with any other calls,
if false, will clean the data after displaying the view,
if not specified, use the config setting.

@return string