auto build

[Erik Eliasson]

I added a hook to SVN to auto-compile minisip with a few different
"configure" settings.

Right now five attempts are made (only one compiler version so far, and
no cross compiling):
 - On the first error found, the author of the commit gets an email.
 - When all (now five) builds have completed, the author gets a 
   summary email
 - If trunk does not build, minisip-devel is CC:ed on the final email 
   (but not on the first).

It sends a email on the first error (but not on errors after that until
the summary email) because it can take more than an hour to compile all
tests.

You don't have to be too worried about overloading the machine with
rapid commits since compiling is done on a separate, powerful machine
(not subversion, mail or web server).

The auto-build mechanism assumes that it was "trunk" that was modified.
It's at least something - we'll see how far it gets us. Consider it an
experiment.

--Erik

-- 
Erik Eliasson <eliasson at it.kth.se>