fixed alerts test

details in email.
I actually had some earlier code that I deemed too  complex and unnecessary and I took it out before committing.. that one called `ParseParameters(argc, argv)`  and had calls to `GetArg("-output", defaultFile)` and `GetArg("-keyFile", defaultKeyFile)` and also took the alert key on the command line as the current one does.  Before committing I thought it was too complex since you only need to run this data builder once anyways, so I just changed it to take the key on the command line and defaulted the filename output to be as expected by the Makefiles