locally-installed binaries suggest global install

[zkat]

If you have a locally-installed binary (say, in devDependencies), and you invoke it directly, update-notifier will tell you it's out of date and suggest using -g to update the install, which isn't really right in this case.

My suggestion would be to have update-notifier look up whether it's inside a package (by navigating from pkg/node_modules/.bin and seeing if pkg/package.json exists), and if so, omit the -g from the install (possibly adding --save).

[zkat]

Oh oops, #112 was getting filed already. Closing this one 😁