Update Glup (and friends), along with Gulpfile.js and package.json

The package.json's dependencies were heavily out of date. Not to mention, that it was also missing a lot of basic information.

This commit brings the dependencies up-to-date and updates the package.json.

Gulpfile.js

@@ -1,5 +1,5 @@
 var gulp = require('gulp');
-var sass = require('gulp-sass');
+var sass = require('gulp-sass')(require('sass'));
 var exec = require('gulp-exec');
 
 gulp.task('styles', function(done) {
@@ -13,7 +13,6 @@ gulp.task('shell-style', function(done) {
     gulp.src('gnome-shell/**/*.scss')
         .pipe(sass().on('error', sass.logError))
         .pipe(gulp.dest('./gnome-shell/'))
-        .pipe(exec('gsettings set org.gnome.shell.extensions.user-theme name "Ant"'))
         .pipe(exec('gsettings set org.gnome.shell.extensions.user-theme name "Dracula"'))
     done();
 });