[sr-dev] deb specs for 4.1

[Victor Seva]

Hi there,

this is my initial effort to get a new version [0].

This will create 4.2.0~dev0 packages for wheezy and jessie at master branch.
I've just removed the older releases. I will maintain only this two.

If everything is OK I will cherry-pick and create 4.1.0 packages at
the 4.1 branch

[0] https://github.com/linuxmaniac/kamailio/tree/vseva/deb

PD: I've tried to create a personal branch without any luck. Is there
any naming restriction on the git repo for that?