add npm-registry-couchapp dev dep
Run the npm-registry-couchapp tests along with npm tests

This test will fail if couchdb isn't installed
bump tar and fstream deps
doc: revert accidental whitespace change
Add user-friendly errors for ENOSPC and EROFS.

Fixes #5101.
Update EROFS error to be a bit more informative.
Fix small typo in synopsis in npm-link.md.

Fix small typo (add 's') in command's synopsis in npm-link.md.
Remove concerns of package republishing from shrinkwrap docs

Republishing packages is no longer possible.
version.js: Fix indentation
Remove spurious `er.code =` assignments.

They literally do nothing in all cases.
removed duplicate function
doc: npm-explore can't handle a version

Closes #5323
Bump npm-registry-couchapp for test goodness
WIP MVP: capture _authToken
only set the auth token if it was returned
install working version of npm-registry-client
first piece of @org/package module specifiers
update npm-registry-client othiym23/multi-registry
publish to scoped registries
@scope:registry-base-url → @scope:registry