Upgrades commandline framework to use GLI

Since all of our other tools are now using GLI, changing things so this does as well.

URLs
----
* Add any additional URLs (like Helpspot tickets)

QA Plan
-------
Try running the scripts locally.  I was calling the bin file directly doing `bin/op`, but if you bundle, it should add the `op` command to your path.

I have tested out a decent number of these already (this PR was created using `pull-request`), so just confirm that the rest are working as expected.
`nil`.  I went and checked in the console.

```ruby
irb> [][0]
#=> nil
irb> [][1]
#=> nil
```