Removed clite codec, providing via other project
Removed code that was never being used
Minor fixes

- correct email in man page footer
- use zsocket_wait/signal instead of sending strings
Problem: does not work with zsock_t sockets

Solution added support, keeping void * for socket arguments.
Also added selftest using zsock_t sockets to ensure it works.
Problem: wrongly calculating timeout in msec

server/timeout is meant to be seconds; was calculating as msec
leading to broken test results in zbroker.
Revert "Problem: wrongly calculating timeout in msec"

This reverts commit a1c0d3422b4dcade1f707033044887c2bb1f76db.

Turns out I've a use case where I want timeouts in msec. So
changing it to msec everywhere.
Merge pull request #54 from hintjens/master

Fixed server/timeout and other issues