* maint:
doc: Update zmq_socket(3) for 2.0.8 API changes
Revert "Added man page for the zmq_device method"
Revert "Added clean target that deletes generated man pages"
Revert "Various changes to documentation project:"
Revert "Reverting 'clean' change to Makefile"
Revert "Removed empty man pages for old standalone devices"
Revert "Further cleanups on reference manual"
Revert "Small improvements to zmq_device(3) page"
Revert "Removed wip zmq_deviced from master"
* Added documentation for zmq_deviced, which we're developing
* Created consistent page footer in documentation template
* Page footer notes doc authors and copyright statement