CityData v1.2.0-beta

What's Changed

• Update README.md based on feedback from early testers by @nkinesis in #62, #63
• Feature/exists route by @MinetteMeyo in #68
• Fix tests by @nkinesis in #70
• Update tests by @nkinesis in #71
• Add implementation of /exists to master by @nkinesis in #72
• Update README and file paths by @nkinesis in #82
• Add license file by @nkinesis in #73
• Fix discovery routes by @nkinesis in #84
• Feature/exists route tests by @MinetteMeyo in #85
• Merge develop into master by @nkinesis in #106

Full Changelog: v1.1.0-beta...v1.2.0-beta