Hacker News on 15 March 2017

• GitLab acquires Gitter, will open-source the code
• How I Made $70k Self-Publishing a Book about Ruby on Rails
• Tesla to raise $1B
• Practical Color Theory for People Who Code
• Trolling the Entire Internet
• Hiring without whiteboards
• We’ve lost control of our personal data, including 33M NetProspex records
• German traffic light stays red for 28 years (2015)
• An 85-year old millionaire hides $1M treasure in the Rocky Mountains (2016)
• Unsealed Documents Raise Questions on Monsanto Weed Killer