Friendica Dev Team update

I would like to congratulate and welcome @Philipp Holzer to the #Friendica Core Development Team!

Philip has single-handedly sparked the much needed unit testing project on the Friendica codebase. Those unit tests run on every GitHub pull request by a Travis CI hook and have already been catching quite a number of bugs before they made it to the develop branch. At the moment these tests are mostly covering the API used by mobile apps, but the long-term goal is to be able to cover the whole codebase.

Philip has also been creating the official Friendica Docker image https://github.com/friendica/docker for easier deployment and is dutifully maintaining it with each new Friendica release.

Since he made himself indispensable to the project over the last several months, we had no other choice than add him to the Friendica Core Development Team.

Here's to a well-deserved promotion and to a lasting impact on the Friendica project!