Since few days I was working on Mollie Payment Gateway Integration with Odoo. Finally I have done it successfully. If anyone needs any kind of help in form of it's integration, coding problems, working structure or if you are interested in buying this module, you can contact by through comments on this post.
Update: Now Mollie Payment Acquirer Module(Odoo 8) is available for sale on Odoo webshop as well. Buy Here
Thanks!!!! Enjoy Programming :)