This patch changes libuv's gyp build system to
make it's own makefiles. To generate them for rust,
run these commands. They requires python 2.x to
work:
$ mkdir -p src/rt/libuv/build
$ svn co http://gyp.googlecode.com/svn src/rt/libuv/build/gyp
$ ./etc/src/gyp_uv
Vectors are now similar to our old, pre-internal vectors, except that
they are uniquely owned, not refcounted.
Their name should probably change too, then. I've renamed them to vec
in the runtime, will do so throughout the compiler later.