fix global leak
doc: folders is section 5, not 7
doc: Point at npm-ls, not npm-list

Re isaacs/npm-www#359
doc: Remove duplicate version range line in npm-install.
Bump many deps for graceful-fs@2 upgrade
nopt@2.1.2
semver@2.0.11
read@1.0.5
fstream-npm@0.1.5
bump all deps to use inherits@2
install: Replace warnings, reduce strictness

We need a more carefully considered approach here.  For now
go back to what we had prior to 1.3
v1.3.5
show better error message for proxy users

This will hopefully enable the npm users behind a proxy to help
themselves in case of a proxy/network issue.
add ECONNRESET to 'network issues' category
include sha's readable-stream optional dep

Fix #3698
Add many authors

Whoops, haven't been keeping up with this.

Lots of new names!  Hooray!
Remove urls from AUTHORS file

Email address is enough.
License: Artistic-2.0

The 'MIT +no-false-attribs' license was a hacked jury-rigged thing
that half-does what the Artistic-2.0 does much better.
Authors: add gflarity's email address
cache: Never be strict (for now)