Changing the master-slave phrasing

[bopopescu]

For diversity reasons, it would be nice to try to avoid 'master' and 'slave' terminology in this repository which can be associated to slavery. The master-slave terminology could be problematic for people in several countries which has the history of slavery like Romania, USA and many others. Thank you for considering the proposal. Let me know if any changes in the PR are needed, I would be happy to implement them.

[codecov]

Codecov Report

Merging #4 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master       #4   +/-   ##
=======================================
  Coverage   91.49%   91.49%           
=======================================
  Files          13       13           
  Lines         494      494           
=======================================
  Hits          452      452           
  Misses         42       42           

Impacted Files	Coverage Δ
dnsmanager/migrations/0001_initial.py	100.00% <ø> (ø)
dnsmanager/models.py	95.80% <ø> (ø)

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[mbombar]

Hi ! The master/slave terminology is not really something we care of, and we would be happy to change it if it makes somebody uncomfortable to use our app. However, this is the official terminology for the main dns servers like bind9 or knot.
For instance here, in the source code of bind9 :
https://github.com/isc-projects/bind9/blob/3a5a508a0bc4fc7558b14679e77dc58bbc0b0ea4/lib/dns/include/dns/master.h#L38

I suggest making a PR there first, then when it will be changed upstream, we may update django-dnsmanager.

[mbombar]

In fact, we can use primary/secondary instead of master/slave. It can also be used equivalently in the configuration of bind9.
You may update the PR.

However, what do you think about webmaster : You also changed it in your PR, but this is the right terminology. I think that nobody uses webmain.