refactor(dir): move exports to src/global and consolidate tests

Summary:
This:

1. Moves spec-nylas into spec
1. Gets rid of old & irrelevant specs
1. Moves the `vendor` folder (jasmine libs) into the `spec` folder
1. Moves the `exports` folder to `src/global` and updates all references

I pretty extensively made sure the client still works and that all of the
tests pass. The changes should have no effect.

Test Plan: All tests pass!

Reviewers: bengotow, dillon

Differential Revision: https://phab.nylas.com/D2098

build/tasks/build-task.coffee

@@ -46,7 +46,6 @@ module.exports = (grunt) ->
     packageDirectories = []
     nonPackageDirectories = [
       'dot-nylas'
-      'vendor'
     ]
 
     {devDependencies} = grunt.file.readJSON('package.json')

build/tasks/generate-module-cache-task.coffee

@@ -23,7 +23,6 @@ module.exports = (grunt) ->
           'src'
           'src/browser'
           'static'
-          'vendor'
         ]
 
     # Reactionary does not have an explicit react dependency

spec/jasmine-helper.coffee

@@ -4,7 +4,7 @@ remote = require 'remote'
 module.exports.runSpecSuite = (specSuite, logFile, logErrors=true) ->
   {$, $$} = require '../src/space-pen-extensions'
 
-  window[key] = value for key, value of require '../vendor/jasmine'
+  window[key] = value for key, value of require './jasmine'
 
   {TerminalReporter} = require 'jasmine-tagged'
 

spec/spec-helper.coffee

@@ -3,7 +3,7 @@ atom.initialize()
 atom.restoreWindowDimensions()
 
 require 'jasmine-json'
-require '../vendor/jasmine-jquery'
+require './jasmine-jquery'
 path = require 'path'
 _ = require 'underscore'
 _str = require 'underscore.string'