This header is included with each request, so that the Manager can handle
software version bookkeeping however it sees fit.

This is a clone of the Flamenco repository from back in the days when
Server, Manager and Worker shared the same Git repository. This is the
commit where that ended, and they went their separate ways.

It can register with the Flamenco Manager, but nothing
else. It does save its secret & worker ID in a config
file, though.

As for Manager and Server. Closes #65.

Should not have functional changes.

- properly named and blueprinted controllers for the server app
- moved the three modules into a brender folder

Created a modules folder that contains workers, shots and jobs modules.
This way the root folder is cleaner and all the specific functions
(including routes) are grouped in the right files.