Give all of our threads meaningful names, to aid with debugging.

[nageru] / bmusb

diff --git a/bmusb b/bmusb
index 9053593313b47bd5fd6b888bec9809bf4aacc8a9..1833f747a9008f38e5597622f2e3dbce3340e2cb 160000 (submodule)
--- a/bmusb
+++ b/bmusb
@@ -1 +1 @@
-Subproject commit 9053593313b47bd5fd6b888bec9809bf4aacc8a9
+Subproject commit 1833f747a9008f38e5597622f2e3dbce3340e2cb