Use v0.4 display-interface (#120)

* Use new display-interface v0.4

* Add CHANGELOG entry

* Change CHANGELOG to include actual dependency version

Author: bugadani

CHANGELOG.md

@@ -8,6 +8,7 @@
 
 ### Changed
 
+- [#120](https://github.com/jamwaffles/ssd1306/pull/120) Update to v0.4 [`display-interface`](https://crates.io/crates/display-interface)
 - **(breaking)** [#116](https://github.com/jamwaffles/ssd1306/pull/116) Replace custom I2C and SPI interfaces by generic [`display-interface`](https://crates.io/crates/display-interface)
 - **(breaking)** [#113](https://github.com/jamwaffles/ssd1306/pull/113) Removed public `send_bounded_data` from DisplayInterface and implementations
 

Cargo.toml

@@ -19,9 +19,9 @@ targets = [ "thumbv7m-none-eabi", "thumbv7em-none-eabihf" ]
 
 [dependencies]
 embedded-hal = "0.2.3"
-display-interface = "0.3"
-display-interface-i2c = "0.3"
-display-interface-spi = "0.3"
+display-interface = "0.4"
+display-interface-i2c = "0.4"
+display-interface-spi = "0.4"
 
 [dependencies.embedded-graphics]
 optional = true