Problem: making project files by handl

Solution: use zproject
Problem: somewhat on the slow side

Solution: rework internal plubming to use separate msgpipe and
send high-volume traffic as binary where possible (this can still
be improved though it's already about 2x faster).
Problem: zlist API shifted to zlistx

Solution: fix the code to work with CZMQ master
Problem: Project build systems out of date
Solution: Regenerate with latest zproject
Regenerated project files
Merge pull request #1 from jemc/hintjens-master

Problem: Project build systems out of date
Merge pull request #23 from hintjens/master

Performance tuning