Move all the motors stuff into a saner namespace

Letting the mechanical engineers name software is never a good idea...

Change-Id: I5d0e43d84a8f45693435472cc0e5e288f6190b14
diff --git a/motors/pistol_grip/controller.cc b/motors/pistol_grip/controller.cc
index 162ac2f..28e1503 100644
--- a/motors/pistol_grip/controller.cc
+++ b/motors/pistol_grip/controller.cc
@@ -26,7 +26,7 @@
 extern const float kTriggerCoggingTorque[4096];
 
 namespace frc971 {
-namespace salsa {
+namespace motors {
 namespace {
 
 using ::frc971::control_loops::drivetrain::MakeIntegralHapticTriggerPlant;
@@ -870,5 +870,5 @@
   return 0;
 }
 
-}  // namespace salsa
+}  // namespace motors
 }  // namespace frc971