Simplify os::hostname() in libstout.
Fix Hadoop classpath for tutorial & deployment.
Run Hadoop tutorial binaries from within build dir.
Include pre/post-package hook scripts in Hadoop tutorial.
Allow ending Hadoop tutorial early.

Allow someone to end tutorial after building/packaging complete.  You
can also skip the test part by exporting SKIP_TESTS (i.e., 'make hadoop
SKIP_TESTS=1').
Use XZ (LZMA) for package on Linuxes.
Do a simple check for required build tools.
Build fix for HadoopPipes.cc with GCC 4.7.
Build fix for GCC 4.7.
Check for Python.h in configure script.
Use more portable paths for tutorial test.