2012.02.14, Version 0.7.4 (unstable)

* Upgrade V8 to 3.9.5

* Upgrade npm to 1.1.1

* build: Detect host_arch better (Karl Skomski)

* debugger: export `debug_port` to `process` (Fedor Indutny)

* api docs: CSS bug fixes (isaacs)

* build: use -fPIC for native addons on UNIX (Nathan Rajlich)

* Re-add top-level v8::Locker (Marcel Laverdet)

* Move images out of the dist tarballs (isaacs)

* libuv: Remove uv_export and uv_import (Ben Noordhuis)