updated setup-ubuntu.sh script to include debugging and SVN revision. and, added a new install script for OSX 10.9

Getting PyV8/V8 to compile using clang on 10.9 is tricky. Apple replaced libstdc++ with LLVM/libc++ as the default.
So, even if you use brew to install boost, the boost libs will be linked against libc++. I had to compile a custom static-only boost-python that was linked against libstdc++, otherwise the resulting _PyV8.so in the egg had runtime link errors.

I also updated your existing setup-ubuntu install script to use buildconf.py for its settings instead of using ENV variables. the latest checkout of PyV8 and the recommended revision, r478, both try to 'svn update' V8 past r14100 in the setup.py, which means you have to override it with buildconf.py

next, libemu will not compile with clang. and, autoconf sets some compile flags wrong because it assume clang. I had to patch the autoconf files and build it using gcc. I understand that this is a libemu bug, but the install script can handle it too.

so there.