Modify some constants for third robot.

- Fix drivetrain_translate.
- Fix crio build.sh.
- Add some snazzy new regexes (as per Brian's suggestion), to
aos/build/build.sh, in order to shorten one of the conditionals.
- Get rid of some old, useless files.
diff --git a/frc971/constants.cpp b/frc971/constants.cpp
index 3016db5..40f4e88 100644
--- a/frc971/constants.cpp
+++ b/frc971/constants.cpp
@@ -74,6 +74,7 @@
 
 const int kCompDrivetrainGearboxPinion = 19;
 const int kPracticeDrivetrainGearboxPinion = 17;
+const int kBot3DrivetrainGearboxPinion = 15;
 
 struct Values {
   // Wrist hall effect positive and negative edges.
diff --git a/frc971/constants.h b/frc971/constants.h
index 414d10d..e530442 100644
--- a/frc971/constants.h
+++ b/frc971/constants.h
@@ -12,6 +12,7 @@
 
 const uint16_t kCompTeamNumber = 5971;
 const uint16_t kPracticeTeamNumber = 971;
+const uint16_t kBot3TeamNumber = 9971;
 
 // Sets *angle to how many radians from horizontal to the location of interest.
 bool wrist_hall_effect_start_angle(double *angle);
diff --git a/frc971/crio/build.sh b/frc971/crio/build.sh
index b3fc031..9b41ad1 100755
--- a/frc971/crio/build.sh
+++ b/frc971/crio/build.sh
@@ -1,3 +1,3 @@
 #!/bin/bash
 
-../../aos/build/build.sh crio crio.gyp no "$@"
+../../aos/build/build.sh crio crio.gyp no crio "$@"