Increase the timeout on bitforce as per Paul Sheppard's suggestion to account for throttling + work time + excess.
diff --git a/driver-bitforce.c b/driver-bitforce.c
index 1fad08f..adcd691 100644
--- a/driver-bitforce.c
+++ b/driver-bitforce.c
@@ -51,7 +51,7 @@ enum {
#define BITFORCE_SLEEP_MS 500
#define BITFORCE_TIMEOUT_S 7
#define BITFORCE_TIMEOUT_MS (BITFORCE_TIMEOUT_S * 1000)
-#define BITFORCE_LONG_TIMEOUT_S 15
+#define BITFORCE_LONG_TIMEOUT_S 30
#define BITFORCE_LONG_TIMEOUT_MS (BITFORCE_LONG_TIMEOUT_S * 1000)
#define BITFORCE_CHECK_INTERVAL_MS 10
#define WORK_CHECK_INTERVAL_MS 50