Verify build mode transitions and propagate GUI job counts

.gitignore

@@ -32,6 +32,7 @@ index.html
 *.exe
 
 # Autotools
+/.utun-build-state*
 Makefile
 !tools/etcpmon/Makefile
 Makefile.in
@@ -84,6 +85,7 @@ logs/
 tests/test_*
 !tests/test_*.c
 !tests/test_*.h
+!tests/test_*.py
 !tests/test_*.conf
 !tests/test_*.json
 tests/bench_*