v0.1.19

Commit	Message/Description
1ae15aa	0.1.19
8f7edb1	Controller: exit process immediately after successful update.
6f658dc	Tessel: Make "displayName" property for wrapping colorized output of Tessel name
3e98b9e	LAN.Connection: ensure that ssh client stubs activate correctly
847946e	greenkeeper: completed set of safe upgrades and supporting changes
64a9949	CI: drop Node 4; add Node 8
2252e58	fix: package.json to reduce vulnerabilities