`verbose` is not a valid level.

New config option replaces existing option exposeEnv. Set trustLevel=high in the bot config if you trust the contents of the repositories you are renovating. Doing so results in env being exposed, access to localhost, etc.

Closes #2739

Renames `endpoints` to `hostRules`

Now supports `--endpoints=[........]` via CLI.

Closes #2455 

NOTE: 
I followed this doc as from what I've seen in the discussion the desired arguments would be `--version` and `-v`, while `commander` uses `-V` as default. This is their suggested way of overwriting it.

https://github.com/tj/commander.js#version-option

Fixes #1469 

BREAKING CHANGE: GitHub *App* support code has been removed from within this repository.

* Add jsonwebtoken

* Add githubApp option

* Add id and key configs

* Add integer parsing to cli and env

* Remove boolean app enablement

* Drop got

* Add API functions for GitHub Apps

* debug not verbose in api

* Add GitHub App Helper

* Update redact function

* Add GitHub app logic

* Update logging

* Fix lint

* getInstallations tests

* getInstallationToken tests

* getInstallationRepositories tests

* Refactor ghGot structure

* Add github app tests

* Add config tests

* update lockfile

Closes #188

* No need to run tests against compiled code
* Better support for reseting modules
* Will make writing tests for the github/npm apis easier

Now generates CLI, env and docs
Makes config more testable

Closes #32

commit b9706b2e0de85d3c2953ddda16cfc15ec92279e3
Author: Rhys Arkins <rhys@keylocation.sg>
Date:   Mon Jan 16 18:09:36 2017 +0100

    Fix lint

commit 04bb13b233609cba425b171ba529810b0ba614a1
Author: Rhys Arkins <rhys@keylocation.sg>
Date:   Mon Jan 16 18:08:33 2017 +0100

    Defer changelog and prBody

commit 2f1501aeedf1a3a2fb61db7df8ee1c0424efebb2
Author: Rhys Arkins <rhys@keylocation.sg>
Date:   Mon Jan 16 18:08:15 2017 +0100

    recreateClosed

commit 09cecdfcdd8a991c0d25bc7e27aef273c28595e0
Author: Rhys Arkins <rhys@keylocation.sg>
Date:   Mon Jan 16 13:24:58 2017 +0100

    docs

commit f219c1165086409a806dff8370050ae7909d8176
Author: Rhys Arkins <rhys@keylocation.sg>
Date:   Mon Jan 16 12:40:46 2017 +0100

    Recreate unmergeable PRs

commit c40b6bda284ddefccaddf1487a550d7c3d487a1a
Author: Rhys Arkins <rhys@keylocation.sg>
Date:   Mon Jan 16 12:19:15 2017 +0100

    Delete unmergeable PRs

commit 58283ea70b2b844f02fd025fb11541405b6e3280
Author: Rhys Arkins <rhys@keylocation.sg>
Date:   Mon Jan 16 12:19:03 2017 +0100

    Add github deleteBranch, getBranchPr