Add gotabulate

Generic Go Library for easy pretty-printing of tabular data.
Merge pull request #185 from bndr/patch-1

Add gotabulate
Add An Introduction to Programming in Go
Merge pull request #187 from oligot/golang-book

Add An Introduction to Programming in Go
add okrun to Utilities section
Merge pull request #188 from xta/master

add okrun to Utilities section
Add gcvis: tool to visualise Go program GC trace data in real time
Merge pull request #189 from oligot/gcvis

Add gcvis: tool to visualise Go program GC trace data in real time
add a logging lib
Adding ebook building web apps with go
Merge pull request #191 from renatosuero/master

Adding ebook building web apps with go
Merge pull request #184 from fromYukki/master

GoLang Library for Browser Capabilities Project
Adding lumberjack - rolling logger
Alphabetical order!
Merge pull request #192 from tehbilly/master

Adding lumberjack - rolling logger
Update README.md
Merge pull request #190 from chzyer/patch-1

add a logging lib
Updated the URL of Gomail
Merge pull request #193 from alexcesaro/master

Updated the URL of Gomail
Update README.md adding go-shopify

Adding go-shopify to Third Party Libraries on README.md