Lights, Doc, Db

- Now lights works with DialogFlow
- Database automatically update data from user's fitbit
- Doc is written well (well.. it is ok)
- Added logging here and there
- Removed unused code
- Improved code reading and code quality

src/main/java/device/fitbitdata/Steps.java

@@ -23,8 +23,6 @@ public class Steps {
 				steps = Integer.parseInt(map.get("value"));
 	}
 	
-	public int getSteps() {
-		return steps;
-	}
+	public int getSteps() { return steps; }
 
 }