title: No local gulp install found even after installing npm install -g gulp
body: <p>I tried to install gulp by </p>
  
  <pre><code>npm install -g gulp
  </code></pre>
  
  <p>The output seems to be something like this. (i have skipped some logs)</p>
  
  <pre><code>npm http 304 https://registry.npmjs.org/string_decoder
  npm http 304 https://registry.npmjs.org/lodash._htmlescapes
  /usr/bin/gulp -&gt; /usr/lib/node_modules/gulp/bin/gulp.js
  gulp@3.6.2 /usr/lib/node_modules/gulp
  ├── tildify@0.2.0
  ├── pretty-hrtime@0.2.1
  ├── deprecated@0.0.1
  ├── archy@0.0.2
  ├── semver@2.2.1
  ├── chalk@0.4.0 (has-color@0.1.7, ansi-styles@1.0.0, strip-ansi@0.1.1)
  ├── orchestrator@0.3.3 (sequencify@0.0.7)
  ├── liftoff@0.9.8 (extend@1.2.1, minimist@0.0.8, resolve@0.6.3, findup-sync@0.1.3)
  ├── vinyl-fs@0.1.4 (graceful-fs@2.0.3, map-stream@0.1.0, mkdirp@0.3.5, vinyl@0.2.3, glob-stream@3.1.9, glob-watcher@0.0.6)
  └── gulp-util@2.2.14 (lodash._reinterpolate@2.4.1, dateformat@1.0.7-1.2.3, minimist@0.0.8, vinyl@0.2.3, multipipe@0.0.2, through2@0.4.1, lodash.template@2.4.1)
  </code></pre>
  
  <p>In the above script i can see a line 
  /usr/bin/gulp -> /usr/lib/node_modules/gulp/bin/gulp.js
  which i guess is making a simulink in bin folder. So i should be getting gulp globally but i get the this error.</p>
  
  <pre><code>No local gulp install found in /var/www/ksapp
  </code></pre>
  
  <p>Any idea why i am getting this error. </p>
  
  <p>Thanks</p>