Merge remote-tracking branch 'origin/master' into damage

src/orbital.rs

@@ -150,6 +150,11 @@ impl OrbitalImpl {
         // Tell orbital to show the latest window data
         syscall::fsync(self.window_fd()).expect("failed to sync orbital window");
     }
+
+    /// Fetch the buffer from the window.
+    pub fn fetch(&mut self) -> Result<Vec<u32>, SoftBufferError> {
+        Err(SoftBufferError::Unimplemented)
+    }
 }
 
 enum Pixels {