cleaned up issues with Daniel's code

There were a lot of style things and a misunderstanding of the protocol
between the cape and the BBB.
diff --git a/frc971/atom_code/build.sh b/frc971/atom_code/build.sh
index b8129ab..172b2d4 100755
--- a/frc971/atom_code/build.sh
+++ b/frc971/atom_code/build.sh
@@ -1,3 +1,5 @@
 #!/bin/bash
 
+cd $(dirname $0)
+
 ../../aos/build/build.sh atom atom_code.gyp no "$@"