Clean up three sets of warnings:

* Ensure all switches have a default when working with enums.
* Match defined new[] calls with delete[] calls.
* Respect variable initialization order.

src/TimingData.cpp

@@ -712,6 +712,8 @@ void TimingData::AddSegment( const TimingSegment *seg )
 			}
 			break;
 		}
+		default:
+			break;
 	}
 
 	// the segment at or before this row is equal to the new one; ignore it