[toaster] Yet another piece of patch - qmail-tap for toaster-0.8

[Kelvin Wu]

This is just a little piece of patch which can be applied onto 
toaster-0.8. It provides the "tapping" function to netqmail.
After applying the patch, create the file control/taps with the 
corresponding format should enable the tap function. For details, 
please see the instructions in inter7.com.

Bill, again, if you find it appropriate, please feel free to 
incorporate it into your next release of toaster.

cheers,
Kelvin