Closes getlantern/lantern#1752

Contains:

- https://github.com/getlantern/pathreflect/pull/1
- https://github.com/getlantern/deepcopy/pull/1
- https://github.com/getlantern/enproxy/pull/6
- https://github.com/getlantern/tlsdialer/pull/4
- https://github.com/getlantern/flashlight/pull/49
- https://github.com/getlantern/yamlconf/pull/1