Changes vendor.json to one dependency per line

chown $GOPATH for vagrant user

Use the Service.Hash() method in agent service ids

Fix for rpc_upgrade_mode

The allocID and taskName parameters are useless for agents, but it's
still nice to reuse the same hash method for agent and task services.
This brings in the lowercase mode for the agent hash as well.

Node Status output includes new modify time

Fix followers not creating periodic launch

Fix an issue in which periodic launches wouldn't be made on followers.

Allow custom ports for services and checks when using driver address_mode

fix hashi-ui link

Fixes #3620

Previously we concatenated tags into task service IDs. This could break
deregistration of tag names that contained double //s like some Fabio
tags.

This change breaks service ID backward compatibility so on upgrade all
users services and checks will be removed and re-added with new IDs.

This change has the side effect of including all service fields in the
ID's hash, so we no longer have to track PortLabel and AddressMode
changes independently.