Merge pull request #1 from LucsT/master

Update server.js (Https doesn't start on specified port)
Allow the selection of either or both HTTP & HTTPS in the same server process.
Bump version
Allow the upstream registry communication to happen with either HTTP/HTTPS

https://github.com/ActiveState/npm-lazy-mirror/issues/4

Adds the configuration options:

--upstream_use_https
--upstream_verify_ssl
Allow JSON config file path to be passed with the -C option
Bump version to 0.1.3
Fix negation of verify_ssl argument

+ fix import of HTTPS when grabbing metadata from upstream
If HTTPS is enabled, use that as the default tarball URL override protocol.
Allow the specification of the external port if the mirror is behind a proxy
Update copyright notice
Support HTTP{S}_PROXY and reading `npm config` for proxy settings.

Fixes #5
Update help usage for #5
Allow dots in package names via HTTP routes. Fixes #6.
Version 0.2.1
Migrate version parsing to the respective package handler. Fixes #7.
Fix tests.
never bust cache for packages containing 'cozy-secret-'