malibu update - 2 - Bug fixes

[Ezra]

I fixed the following bugs:
1. C4.5 writing to a model file (crashes)
2. evaluate program using several validation techniques (missing
header information when building tabel).
3. spaces in label names, using quotes will now work

Check out the latest know bugs at:
http://code.google.com/p/exegete/issues/list

Check out the newest updated help files at:
http://code.google.com/p/exegete/w/list