Tweaks the the dev env and build system

.gitignore

@@ -1,31 +1,26 @@
+.DS_Store
 .sconf_temp/
 .sconsign.dblite
-/build
-/dist
-/crap
-/pkg
-/mnt
-/demo
-/bbctrl-*
-node_modules
-*~
-\#*
-*.pyc
-__pycache__
-*.egg-info
-/upload
-/*.img
-/*.img.xz
-/*.img.gzip
-/*.img.bz2
-*.so
 *.deb
-*.zip
-/rpi-share
-/rpi-root
-/src/bbserial/linux-rpi-raspberrypi-kernel*
-/src/bbserial/raspberrypi-kernel*
-.vscode
+*.egg-info
 *.elf
 *.hex
+*.img
+*.img.bz2
+*.img.gzip
+*.img.xz
+*.pyc
+*.so
+*.tmp
+*.zip
+**/__pycache__
+*~
+\#*
+build
+dist
+node_modules
 null.d
+rpi-root
+rpi-share
+src/bbserial/linux-rpi-raspberrypi-kernel*
+src/bbserial/raspberrypi-kernel*