Moved 2014 drivetrain code into y2014 namespace.

Change-Id: I74a1922f846a288725df2aea01c5c9e1b99e07b3
diff --git a/y2014/constants.cc b/y2014/constants.cc
index a2928a1..1303d68 100644
--- a/y2014/constants.cc
+++ b/y2014/constants.cc
@@ -22,7 +22,7 @@
 #define M_PI 3.14159265358979323846
 #endif
 
-namespace frc971 {
+namespace y2014 {
 namespace constants {
 namespace {
 
@@ -221,4 +221,4 @@
 }
 
 }  // namespace constants
-}  // namespace frc971
+}  // namespace y2014