Update EPP request-response examples

[vohmar]

EPP request-response examples are outdated
registry/doc/epp-examples.md

for example:
https://github.com/internetee/registry/blob/master/doc/epp-examples.md#epp-contact-with-valid-user-create-command-successfully-creates-a-contact
this request should return code 1100 not 1000 in the light of current .ee domain regulations.

there should also be an example of request without <contact:addr> element that returns code 1000. As this doc is generated from model tests we should add also note about settings in case non-default values are used - address processing disabled for example.

[artur-intech]

Might be connected to #351, #247

[artur-intech]

Those examples were previously generated using test:epp_doc rake task from the specs located at spec/epp. Those were not model specs (which are in spec/models folder).

All this stuff has been removed by #206. They were extremely hard to read and maintain them. Also, Apache web-server was required to run them, which is extremely slow and hard to support, if possible at all (say, running them on Jenkins).

To have updated examples, we need to implement new generator (long-term solution). As a quick fix, we could just manually update it.

[vohmar]

Please update the examples. Will create separate ticket for fully automated solutions.

[vohmar]

in production, branch deleted