package: warn on local install via preferGlobal

See https://www.npmjs.org/doc/files/package.json.html#preferglobal
config: piped master config inlined for workers

Configuration piped to master gets sent over to the workers
by means of inlining, by converting their cli argument vectors.
src: use c-style comments
v0.32.8

Signed-off-by: Fedor Indutny <fedor@indutny.com>
deps: update libuv to v1.0.0-rc2
v0.32.9

Signed-off-by: Fedor Indutny <fedor@indutny.com>