move to npm scripts

gulpfile.js

@@ -1,10 +1,7 @@
 var gulp = require('gulp'),
     rimraf = require('rimraf'),
     runSequence = require('run-sequence'),
-    ghPages = require('gulp-gh-pages'),
-    merge = require('merge-stream'),
-    gulpUtil = require('gulp-util'),
-    child = require('child_process');
+    merge = require('merge-stream');
 
 var paths = {};
 paths.dist = './_site/';
@@ -68,37 +65,3 @@ gulp.task('lib', ['clean:lib'], function () {
 
     return merge(tasks);
 });
-
-gulp.task('deploy', [], function () {
-    return gulp.src(paths.dist + '**/*')
-        .pipe(ghPages({ cacheDir: '../.publish_cache/help' }));
-});
-
-function jekyll(commands, cb) {
-    var jekyllLogger = (buffer) => {
-        buffer.toString()
-            .split(/\n/)
-            .forEach((message) => gulpUtil.log(message));
-    };
-    var jekyllCommand = process.platform === "win32" ? "jekyll.bat" : "jekyll";
-    var jekyll = child.spawn(jekyllCommand, commands);
-    jekyll.stdout.on('data', jekyllLogger);
-    jekyll.stderr.on('data', jekyllLogger);
-    jekyll.stderr.on('close', cb);
-    return jekyll;
-}
-
-gulp.task('jekyll:build', function (cb) {
-    return jekyll(['build', '--watch'], cb);
-});
-
-gulp.task('jekyll:serve', function (cb) {
-    return jekyll(['serve', '--watch', '--host=0.0.0.0'], cb);
-});
-
-gulp.task('default', function (cb) {
-    return runSequence(
-        'build',
-        'jekyll:serve',
-        cb);
-});