Wrong Reactionary dependence

exports/atom.coffee requires package `reactionary` while atom only has `reactionary-atom-fork` as a dependence (https://github.com/atom/atom/blob/master/package.json#L53). Should require `reactionary-atom-fork` instead.

It's clear that `Reactionary` will soon be omitted from atom's module exports, but as long as fallbacks are provided, the `reactionary` package reference should be corrected. :)
Updated deprecation msg to reactionary-atom-fork
Merge pull request #4286 from m0x72/patch-1

Wrong Reactionary dependence
Downgrade pathwatcher in an attempt to fix build
No longer require atom in the spec-helper
Convert require ‘atom’ to require '../src/space-pen-extensions'
nof
Suppress deprecations in workspaceView
Remove unnecessary workspaceView requires
Remove deprecations in config
Remove Project deserialize deprecation
Suppress deprecations in configDefault test
Update to new menu format
Suppress deprecations for package activation
Add onDidChangeTitle and onDidChangeModified methods to TestView
Suppress deprecations on deprecated code path
Suppress deprecations on pane-view

It’s going away anyway…
Use project.getDirectories()
Remove specs for deprecated methods that are tested elsewhere
Use normalizeLineEndings: false hash