Minor Updates and Small Fixes (#790)

* Update the devDependencies

* Update the gitignore file

* Update the version of gulp

* Fix the build error in the gulpfile script

* Update node version testing for travis

* Update the package.json

* Fix some errors

* Update the devdependencies

* Re arrange the .gitignore

* Update devdependency to the latest stable version

* Add new line at the end of the file

* Fix versioning error

* Update DevDependencies

* Update the version from 3.6.1 into 3.6.2

* Add delays up to 5 seconds

* Update the files from 3.6.1 into 3.6.2

* Modify the documentation and add delay option