Release v1.1.2

This release includes:

• Update copyright headers
• Remove CMake / PlatformIO
• Update Travis-CI
• Fix white spaces

Release v1.1.1

• Simplify pin table
• Add DUE and ESP32 support
• Make PlatformIO generic to support multiple targets
• Register library on PlatformIO

Release v1.1.0

• Rename library sources to prevent conflicts with other Arduino libraries.
• Add travis-ci build scripts.
• Add documentation.

Release v1.0.0

Initial release without documentation.