Merge branch 'master' into dma

Author: teskje

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Added
 
+- Implement `InputPin` for `Output<OpenDrain>` pins ([#114](https://github.com/stm32-rs/stm32f3xx-hal/pull/114))
 - Support for safe one-shot DMA transfers ([#86](https://github.com/stm32-rs/stm32f3xx-hal/pull/86))
 - DMA support for serial reception and transmission ([#86](https://github.com/stm32-rs/stm32f3xx-hal/pull/86))
 
@@ -33,7 +34,7 @@ let clocks = rcc
     .use_hse(32.mhz())
     .sysclk(72.mhz())
 ```
-  This is possible through utilizing the divider, which can devide the
+  This is possible through utilizing the divider, which can divide the
   external oscillator clock on most devices. Some devices have even the
   possibility to divide the internal oscillator clock.