2012.06.29, Version 0.8.1 (stable)

V8: upgrade to v3.11.10.12
npm: upgrade to v1.1.33
- Support for parallel use of the cache folder
- Retry on registry timeouts or network failures (Trent Mick)
- Reduce 'engines' failures to a warning
- Use new zsh completion if aviailable (Jeremy Cantrell)
Fix #3577 Un-break require('sys')
util: speed up formatting of large arrays/objects (Ben Noordhuis)
windows: make fs.realpath(Sync) work with UNC paths (Bert Belder)
build: fix --shared-v8 option (Ben Noordhuis)
doc: detached is a boolean (Andreas Madsen)
build: use proper python interpreter (Ben Noordhuis)
build: expand ~ in ./configure --prefix=~/a/b/c (Ben Noordhuis)
build: handle CC env var with spaces (Gabriel de Perthuis)
build: fix V8 build when compiling with gcc 4.5 (Ben Noordhuis)
build: fix --shared-v8 option (Ben Noordhuis)
windows msi: Fix icon issue which caused huge file size (Bert Belder)
unix: assume that dlopen() may clobber dlerror() (Ben Noordhuis)
sunos: fix memory corruption bugs (Ben Noordhuis)
windows: better (f)utimes and (f)stat (Bert Belder)