Minor: Replaced zsock with Sock in doc.
Merge pull request #70 from indradhanush/improvement/doc_fix

Minor: Replaced zsock with Sock in doc.
Restructured examples directory into cmd.
Merge pull request #71 from indradhanush/improvement/reorganizing_directory_structure_for_examples

Restructured examples directory into cmd.
Merge pull request #69 from taotetek/master

Problem: CZMQ "Attach" function not usable from Go
removing zgossip dir until I have time to complete it