Add a way to skip the git hooks via an environment variable

Signed-off-by: Chris Dickens <christopher.a.dickens@gmail.com>
diff --git a/.private/post-rewrite.sh b/.private/post-rewrite.sh
index 0ac4847..60ec3e4 100755
--- a/.private/post-rewrite.sh
+++ b/.private/post-rewrite.sh
@@ -14,6 +14,10 @@
 # derivative branch, such as one you would create for private development.
 #
 
+if [ -n "$LIBUSB_SKIP_NANO" ]; then
+  exit 0
+fi
+
 case "$1" in
   amend)
     # Check if a .amend exists. If none, create one and warn user to re-commit.
diff --git a/.private/pre-commit.sh b/.private/pre-commit.sh
index 346d48a..48328f8 100755
--- a/.private/pre-commit.sh
+++ b/.private/pre-commit.sh
@@ -26,6 +26,10 @@
 BRANCH_OFFSET=10000
 ################################################################################
 
+if [ -n "$LIBUSB_SKIP_NANO" ]; then
+  exit 0
+fi
+
 if [ "$BASH_VERSION" = '' ]; then
   TYPE_CMD="type git >/dev/null 2>&1"
 else
diff --git a/libusb/version_nano.h b/libusb/version_nano.h
index 459f6be..383d63e 100644
--- a/libusb/version_nano.h
+++ b/libusb/version_nano.h
@@ -1 +1 @@
-#define LIBUSB_NANO 11497
+#define LIBUSB_NANO 11498
diff --git a/test b/test
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/test