Perf: replace async with neo-async (#241)

Author: dfederm

package.json

@@ -26,7 +26,6 @@
   "author": "Felix Kling",
   "license": "BSD-3-Clause",
   "dependencies": {
-    "async": "^1.5.0",
     "babel-plugin-transform-flow-strip-types": "^6.8.0",
     "babel-preset-es2015": "^6.9.0",
     "babel-preset-stage-1": "^6.5.0",
@@ -36,6 +35,7 @@
     "flow-parser": "^0.*",
     "lodash": "^4.13.1",
     "micromatch": "^2.3.7",
+    "neo-async": "^2.5.0",
     "node-dir": "0.1.8",
     "nomnom": "^1.8.1",
     "recast": "^0.14.1",

src/Worker.js

@@ -12,7 +12,7 @@
 
 const EventEmitter = require('events').EventEmitter;
 
-const async = require('async');
+const async = require('neo-async');
 const fs = require('fs');
 const writeFileAtomic = require('write-file-atomic');
 const getParser = require('./getParser');

yarn.lock

@@ -133,7 +133,7 @@ ast-types@0.11.1:
   version "0.11.1"
   resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.11.1.tgz#5bb3a8d5ba292c3f4ae94d46df37afc30300b990"
 
-async@^1.4.0, async@^1.5.0:
+async@^1.4.0:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
@@ -2304,6 +2304,10 @@ natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
 
+neo-async@^2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.5.0.tgz#76b1c823130cca26acfbaccc8fbaf0a2fa33b18f"
+
 node-dir@0.1.8:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/node-dir/-/node-dir-0.1.8.tgz#55fb8deb699070707fb67f91a460f0448294c77d"