Update Thor to 1.0.0

[jmks]

HI!

I noticed the TravisCI config contains several older Rubies and hasn't seem a commit in awhile. Is it still being maintained?

The old version of thor is preventing us from upgrading some other gems so here's a patch to upgrade it. The thorfile is pretty simple so doesn't seem like an issue.

The before_install code was stolen borrowed with ❤️ from puma.

[mvgijssel]

Same problem! Would love to see this merged as well.

[badosu]

This would be helpful indeed, we are currently locked on solargraph v0.38.x due to this restriction.

[jmks]

We made a fork for work, so we could continue upgrading other gems: https://github.com/nulogy/approvals

We use the gem only a bit so we're leaning towards replacing the approval specs with plain RSpec.

[geeksam]

Hello! I recently offered to help out with this gem, but it's going to take me a little while to get up to speed. :) Thanks for submitting the PR (especially the Travis changes!). I haven't seen any tests around the CLI that uses Thor, so I'll take a quick look to make sure it at least runs before I merge this.

[geeksam]

Looks good at first glance. However, I haven't tried releasing this gem to rubygems.org yet and I'm at the end of my workday, so I'll come back to this soon :)

[geeksam]

...on second thought, I can at least merge this, even if I don't release right away.

[geeksam]

0.0.25 pushed to rubygems.