Update deps and coverage

.gitignore

@@ -12,6 +12,7 @@ lib-cov
 
 # Coverage directory used by tools like istanbul
 coverage
+.nyc*
 
 # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
 .grunt

.travis.yml

@@ -1,8 +1,8 @@
 language: node_js
 node_js:
   - '8'
-  - '9'
   - '10'
+  - '12'
 notifications:
   email: false
 sudo: false

lib/backends/fs.js

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 var glob = require('glob'),
     path = require('path'),
     fs = require('fs'),

lib/translator.js

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 var util = require('util'),
     EventEmitter = require('events').EventEmitter;