Add a hashCode function for ComputerDetails

moonlight-common/src/com/limelight/nvstream/http/ComputerDetails.java

@@ -52,6 +52,11 @@ public class ComputerDetails {
 		return false;
 	}
 	
+	@Override
+	public int hashCode() {
+		return localIp.hashCode();
+	}
+	
 	@Override
 	public String toString() {
 		StringBuilder str = new StringBuilder();