This starts to fix the scripts so that they load from /usr/lib/crosutils

bin/cros_workon_make

Index: bin/cros_workon_make
diff --git a/bin/cros_workon_make b/bin/cros_workon_make
index df5f0a7686b43cd132e30805989de4247e3d4adc..b4fa489a17b95b9b29973b4005e6f7f62c00f280 100755
--- a/bin/cros_workon_make
+++ b/bin/cros_workon_make
@@ -7,7 +7,26 @@
 # Simple wrapper script to build a cros_workon package incrementally.
 # You must already be cros_workon'ing the package in question.
 
-. "$(dirname $0)/../common.sh"
+# --- BEGIN COMMON.SH BOILERPLATE ---
+# Load common CrOS utilities.  Inside the chroot this file is installed in
+# /usr/lib/crosutils.  Outside the chroot we find it relative to the script's
+# location.
+find_common_sh() {
+  local common_paths=(/usr/lib/crosutils "$(dirname "$(readlink -f "$0")")/..")
+  local path
+
+  SCRIPT_ROOT=
+  for path in "${common_paths[@]}"; do
+    if [ -r "${path}/common.sh" ]; then
+      SCRIPT_ROOT=${path}
+      break
+    fi
+  done
+}
+
+find_common_sh
+. "${SCRIPT_ROOT}/common.sh" || (echo "Unable to load common.sh" && exit 1)
+# --- END COMMON.SH BOILERPLATE ---
 
 # Script must be run inside the chroot.
 restart_in_chroot_if_needed "$@"