Add script to bump version numbers.

scripts/bump_version.sh

@@ -0,0 +1,14 @@
+#! /usr/bin/env bash
+
+#
+# Bumps the version number from <current> to <next> on all libraries.
+#
+
+if [ -z ${1} ] || [ -z ${2} ]; then
+  echo "Usage: $0 <current> <next>"
+  echo "Example: $0 0.1.1 0.1.2"
+  exit 1
+fi
+
+find . -name "*.toml" | xargs sed -i.bak "s/${1}/${2}/g"
+find . -name "*.bak" | xargs rm