Merge branch...

Merge branch '54-check-what-happens-when-saving-bleeding-screen-with-nothing-selected' into 'master'

Resolve "check what happens when saving bleeding screen with nothing selected"

Closes #54

See merge request bloodyhealth/drip!11

bleeding.js

@@ -78,6 +78,7 @@ export default class Bleeding extends Component {
             })
             navigate('dayView', { cycleDay: day })
           }}
+          disabled={ this.state.currentValue === -1 }
           title="Save">
         </Button>
       </View>