Speeding up to_nm Squashed commit of the following:
Speeding up to_nm
Squashed commit of the following:

commit 3098500a8ba826e65654160e47a3c3431da48a9f
Author: Arafatk <arafat@iitkpg.ac.in>
Date:   Wed Apr 6 00:49:18 2016 +0530

    Speeding up to_nm

commit c835a19a9284eb8aaba7b1a4c6ccc6e278eadd82
Author: Arafatk <arafat@iitkpg.ac.in>
Date:   Wed Apr 6 00:44:49 2016 +0530

    reverting

commit f5f233cce34dde959704e01942f45327b2b5ab83
Author: Arafatk <arafat@iitkpg.ac.in>
Date:   Wed Apr 6 00:19:51 2016 +0530

    removing space

commit 3d45bd83a790c1ada076e977f7bbb7550c3d52ab
Author: Arafatk <arafat@iitkpg.ac.in>
Date:   Wed Apr 6 00:17:37 2016 +0530

    Speeding up to_nm

agisga/mixed_models,agisga/mixed_models