Log Message:
Update john to 1.7.3.1. Add license. Update patch-aa.
Changelog:
The following changes have been made between John 1.7.3 and 1.7.3.1:

* Corrected the x86 assembly files for building on Mac OS X.
* Merged in some generic changes from JtR Pro.

The following changes have been made between John 1.7.2 and 1.7.3:

* Two Blowfish-based crypt(3) hashes may now be computed in parallel for much
better performance on modern multi-issue CPUs with a sufficient number of
registers (e.g., x86-64).
* Bitslice DES assembly code for x86-64 has been converted to use
instruction pointer relative addressing (needed for Mac OS X support).
* New make targets: macosx-universal, macosx-x86-64, solaris-x86-64-cc,
solaris-x86-64-gcc, solaris-x86-sse2-cc, solaris-x86-sse2-gcc,
solaris-x86-mmx-cc, solaris-x86-mmx-gcc, solaris-x86-any-cc, linux-ia64;
other changes to the Makefile.
* Minor bug fixes.
* "DumbForce" and "KnownForce" external mode samples have \ 
been added to the
default john.conf.