Fix Vagrant 1.9+ compatibility.

[voxik]

Vagrant 1.9+ is not using Bundler for management of its dependencies, so
drop the Bundler dependency.

This might compatible with Vagrant 1.7.2+. On the other hand, the missing dependency might be problem for Vagrant < 1.9

[emyl]

Thanks for the contribution!

It's not completely clear to me what benefit this change could bring, could you please clarify?

[voxik]

I am afraid, that since Vagrant is not using Bundler for its dependency management anymore, the Bundler.with_clean_env might have some side-effects. For example, I suspect that it might have something to do with #89

[id-anderson]

$ vagrant up
Installing the 'vagrant-triggers' plugin. This can take a few minutes...
Bundler, the underlying system Vagrant uses to install plugins,
reported an error. The error is shown below. These errors are usually
caused by misconfigured plugin installations or transient network
issues. The error from Bundler is:

conflicting dependencies rb-fsevent (= 0.10.2) and rb-fsevent (= 0.9.8)
  Activated rb-fsevent-0.9.8
  which does not match conflicting dependency (= 0.10.2)

  Conflicting dependency chains:
    rb-fsevent (= 0.9.8), 0.9.8 activated

  versus:
    rb-fsevent (= 0.10.2)

  Gems matching rb-fsevent (= 0.10.2):
    rb-fsevent-0.10.2

[id-anderson]

Hope that helps clarify things!

[id-anderson]

Hey guys, just checking in on this "Pull Request" - it fixes a critical issue that my team is experiencing with this wonderful plugin. Any updates? It's kind of a bummer that this plugin doesn't work with modern version of Vagrant that a lot of people are using.

[id-anderson]

Is this project dead? I'm going to advise my developers to fork it so that we can move forward. Thanks!

[emyl]

@id-anderson it's not dead, it's open source. That is, best effort. See also #85.

If you want to take over, you're very welcome. Just let me know.
Emiliano

[brethash]

@emyl I'd be happy to step in as a maintainer on this project as I've used it on several projects. LMK!

[brethash]

After doing some research, it appears that that Vagrant::Util::Env.with_clean_env was introduced at 1.7.0. Vagrant v1.7.0 was released on Nov 8, 2014. I feel like roughly 3.5 years is a reasonable amount of time to allow for compatibility updates. Hence, I'm merging this PR and will set the minimum Vagrant version requirement in the Readme to reflect this updated requirement.

hashicorp/vagrant@f86189a#diff-2ff5214f9c8f6e3cfa58f32f33c4d3e0

[brethash]

Also thanks @voxik for your work!

[voxik]

YAW