[WIP] Environment -recursive delete

[nehayward]

What does this pull request do? Updates the api and the cli to delete dependencies on env.

How should this be tested? Still needs to be tested, waiting on api-refactor init.

Checklist

• [x] Unit tests
• [ ] Smoke tests (if applicable)
• [ ] System tests (if applicable)
• [x] Documentation (if applicable)

closes #502

[nehayward]

I need to make some changes with the refactor.

[nehayward]

I had to update travis to 1.9 for terraform related issue