Feature - deletion of draft

[iambibhas]

Fixes #337.

[iambibhas]

@jace made the necessary changes and tested. works good.

[jace]

@iambibhas where did we leave this one?

[iambibhas]

@jace even I don't remember. This one was pending review I think. All the issues were fixed. Can get back to this once once we merge the statemanager one. Some workflow will change in this I guess.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}