implements main loop, wip worker
Merge pull request #251 from miniway/master

at peering3.c statefe doesn't handle address on the envelope
Further work on Chapters 6 and 7
Uploaded all examples and images
Finished Chapter 6
Finished Chapter 6
Added untracked listing
Chapter 7 was being uploaded as Chapter 6
Modified the example to use ZMQ_DONTWAIT instead of ZMQ_NOBLOCK (3.2 vs 2.2)
Merge pull request #253 from naveenpalli/master

Modified msreader example
program is functional now; however ther reporting of processed items is weird. everytime there is a duplicate ID but with a different amount of processed tasks
this has something to do with the (random?) sleep
found the bug, forgot to close the worker
fmt
Merge remote-tracking branch 'upstream/master' into feature-rtmama
removes debug code
Merge pull request #254 from haarts/feature-rtmama

Feature rtmama
Fixed link to ZPL
Chapter 7 of the Guide
Finished Chapter 7