fix: Workaround for hanging chromedriver after finishing the task

Wait for 100ms before going on after ending webdrioverio client
See webdriverio/selenium-standalone#351 for more information.

Update npm modules.

Author: prantlf

README.md

@@ -497,6 +497,7 @@ your code using Grunt.
 
 ## Release History
 
+ * 2018-03-28  [v1.0.1]  Workaround for hanging chromedriver after finishing the task
  * 2018-03-11  [v1.0.0]  Require Node.js >= 6
  * 2018-03-11  [v0.8.0]  Add a new instruction - "abort"
  * 2018-03-01  [v0.7.0]  Add optional automatic file numbering

package.json

@@ -44,14 +44,14 @@
     "grunt-contrib-clean": "^1.1.0",
     "grunt-contrib-connect": "^1.0.2",
     "grunt-contrib-nodeunit": "^1.0.0",
-    "grunt-coveralls": "^1.0.1",
+    "grunt-coveralls": "^2.0.0",
     "grunt-istanbul": "^0.8.0",
     "grunt-selenium-standalone": "^1.0.1",
     "grunt-standard": "^3.1.0",
     "nsp": "^3.2.1",
     "phantomjs-prebuilt": "^2.1.16",
-    "semantic-release": "^15.0.2",
-    "travis-deploy-once": "^4.4.0"
+    "semantic-release": "^15.1.4",
+    "travis-deploy-once": "^4.4.1"
   },
   "peerDependencies": {
     "grunt": ">=0.4.5"

tasks/html-dom-snapshot.js

@@ -96,6 +96,9 @@ module.exports = function (grunt) {
                   grunt.util.pluralize(screenshotCount, 'screenshot/screenshots') +
                   ' written.')
               return client.end()
+                // Workaround for hanging chromedriver; for more information
+                // see https://github.com/vvo/selenium-standalone/issues/351
+                .pause(100)
             })
             .catch(function (error) {
               grunt.verbose.error(error.stack)