Clean up gulpfile

- Improve formatting
- Gulpfile is now linted by jshint

gulpfile.js

@@ -10,9 +10,11 @@ const compl   = require('./completions');
 
 var paths = {
   scripts: ['conf.priv.js', 'completions.js', 'conf.js'],
+  gulpfile: ['gulpfile.js'],
   readme: ['README.tmpl.md'],
 };
 
+// This notice will be injected into the generated README.md file
 const disclaimer = `\
 <!--
 
@@ -27,7 +29,7 @@ gulp.task('clean', function() {
 });
 
 gulp.task('lint', function() {
-  return gulp.src(paths.scripts)
+  return gulp.src([].concat(paths.scripts, paths.gulpfile))
     .pipe(jshint())
     .pipe(jshint.reporter('jshint-stylish'));
 });
@@ -41,7 +43,7 @@ gulp.task('build', ['clean', 'lint', 'readme'], function() {
 gulp.task('install', ['build'], function() {
   return gulp.src('build/.surfingkeys')
     .pipe(gulp.dest(os.homedir()));
-})
+});
 
 gulp.task('watch', function() {
   gulp.watch(paths.scripts, ['build']);
@@ -49,27 +51,21 @@ gulp.task('watch', function() {
 });
 
 gulp.task('readme', function() {
-  var complTable = "";
+  var table = "";
   compl.sort(function(a, b) {
-    if (a.alias < b.alias) {
-        return -1;
-    }
-    if (a.alias > b.alias) {
-        return 1;
-    }
+    if (a.alias < b.alias) return -1;
+    if (a.alias > b.alias) return 1;
     return 0;
   }).forEach(function(c) {
       var u = new URL(c.search);
-      complTable += `| \`${c.alias}\` | \`${c.name}\` | \`${u.hostname}\` |\n`;
-  })
-
-
+      table += `| \`${c.alias}\` | \`${c.name}\` | \`${u.hostname}\` |\n`;
+  });
   gulp.src(['./README.tmpl.md'])
     .pipe(replace("<!--DISCLAIMER-->", disclaimer))
     .pipe(replace("<!--COMPL_COUNT-->", compl.length))
-    .pipe(replace("<!--COMPL_TABLE-->", complTable))
+    .pipe(replace("<!--COMPL_TABLE-->", table))
     .pipe(rename('README.md'))
     .pipe(gulp.dest('.'));
-})
+});
 
 gulp.task('default', ['build']);