v0.12.0

set min rust version = 1.34

v0.2.0 — Image generation

• Supports generating images via the image crate.
• Changed license to MIT / Apache-2.0.

v0.1.8 — Minor fixes

• QrCode::new and friends new accept generic AsRef<[u8]> as input (#4).
• Fixed encoding error in Version 27-Q (#7).
• Exposed Bits::max_len() to query how many bits can be encoded (#3).