2.0: Swift 3

Compatibility with Swift 3

1.0: QR the Code

• Swift 2.3 support
• Various fixes to blurry QRCodes and scaling

0.5: Swift 2 support

Added Swift 2 support (thanks @boxenjim)

0.2: Error correction

Adds support for error correction (thanks @SebastienMichoy)

Swift 1.2 support

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v0.1

add custom test build command for travis