Save and Create another on node edit mode

Here I modified the code for my personal use and I thought it may be useful for other users who are using this module.What I did just add a code to bring "Save and Create" button option on content type edit mode.

Present Features:
Once the user create a node and save it then he/she will be redirect to the node/add/x page and there they will find a message and link for the just created page and I thought It will be good on edit page also.

New Feature:
Edit the page which is enabled for the Save and create Another option and you will be find the "Save and create Another" button at the end of the page. Once you click the button your node will be updated and you will see a message and link "Visit your Updated post" and you will be redirect to the node/add/x page.