Renamed sockets to match C example and formatted code
Merge pull request #390 from alexpana/master

Renamed sockets to match C example and formatted code
adding lbbroker.pl
Merge pull request #391 from wesyoung/master

adding lbbroker.pl
fixed a mistake or two, geesh
Merge pull request #392 from wesyoung/master

fixed a mistake or two, geesh
fixed purging of expired workers in WorkerQueue

It seems that if first worker was alive than no checking was performed for all other workers and thus this can lead to a whole bunch of dead workers in queue.
Merge pull request #393 from malexer/master

fixed purging of expired workers in WorkerQueue
Typo fixed.
Merge pull request #395 from arokem/master

Typo fixed.
Update to 0MQ4 + cleanup
Merge pull request #397 from PierreR/master

Update to 0MQ4 + cleanup
Python 3 compatibility for Chapter 1
Python 3 compat for Chapter 2
Python 3 compatibility for Chapter 3
Merge pull request #398 from minrk/py3

Python 3 compatibility for Chapters 1-3
Updated text
Rebuilt Guide
Correct README
Merge pull request #402 from PierreR/master

Correct README