689 update codegangsta to urfave

[jshields]

This PR seeks to address installation issues stemming from a Git repo that was renamed:
#689

The only remaining reference to the old name should be in this comment:
https://github.com/jshields/gobot/blob/master/api/basic_auth.go#L11

To update Gopkg.lock, I ran these commands:

brew install dep
dep ensure

I have no insight into why dep made all the changes it did to the lock file, aside from removing the old dependency name and adding the new one. Here is the version I am using:

dep version
dep:
 version     : v0.5.4
 build date  : 2019-06-14
 git hash    : 1f7c19e
 go version  : go1.12.6
 go compiler : gc
 platform    : darwin/amd64
 features    : ImportDuringSolve=false

[codecov]

Codecov Report

Merging #690 into dev will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##              dev     #690   +/-   ##
=======================================
  Coverage   77.29%   77.29%           
=======================================
  Files         158      158           
  Lines       10944    10944           
=======================================
  Hits         8459     8459           
  Misses       2030     2030           
  Partials      455      455

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[MShoaei]

Why isn't this being merged?

[deadprogram]

We need to switch to modules. In the meantime, merging this PR. Thank you for the contribution!