* Upgrade lzip to version 1.13.
* Remove --man flag because it installs to the correct location.
* Add make check because it's a compression program, and data
integrity seems worth the 2 sec. extra.
* Add ENV.j1 for make install, otherwise it will occasionally fail.
Tested on Lion and 64bit Snow Leopard using all compilers from
XCode-4.3.2 and 4.0.2.
Signed-off-by: Adam Vandenberg <flangy@gmail.com>