Adds horizontal functionality

Copyright

@@ -1,5 +1,5 @@
 /*!
- * Midnight.js <%= version %>
+ * Midnight.js <%= pkg.version %>
  * jQuery plugin to switch between multiple fixed header designs on the fly, so it looks in line with the content below it.
  * http://aerolab.github.io/midnight.js/
  *
@@ -8,4 +8,3 @@
  * Released under the MIT license
  * http://aerolab.github.io/midnight.js/LICENSE.txt
  */
-

README.md

@@ -122,7 +122,9 @@ $('nav').midnight({
   // The class that wraps the contents of each header. Also used as a clipping mask.
   innerClass: 'midnightInner',
   // The class used by the default header (useful when adding multiple headers with different markup).
-  defaultClass: 'default'
+  defaultClass: 'default',
+  // Define `Y` or `X` axis to use the effect vertically(Y) or horizontally(X)
+  axis: 'Y'
 });
 ```
 

gulpfile.js

@@ -3,20 +3,18 @@ var gulp = require('gulp')
 , uglify = require("gulp-uglify")
 , concat = require("gulp-concat")
 , header = require("gulp-header");
-
-var getVersion = function () {
-    info = require("./package.json");
-    return info.version;
-};
-var getCopyright = function () {
-    return fs.readFileSync('Copyright');
-};
+var pkg = require('./package.json');
 
-gulp.task('build', function () {
-    gulp.src('./midnight.jquery.js')
-    .pipe(uglify({preserveComments:'some'}))
+function buildFunction () {
+    return gulp.src('./midnight.jquery.js', {sourcemaps: true})
+    .pipe(uglify({output: {comments:'some'}}))
+    .pipe(header(fs.readFileSync('./Copyright', 'utf8'), { pkg : pkg } ))
     .pipe(concat('midnight.jquery.min.js'))
     .pipe(gulp.dest('./'));
-});
+}
 
-gulp.task('default', ['build']);
+var build = gulp.series(buildFunction);
+
+exports.build = build;
+
+exports.default = build;