v0.12.2

• Fix example configmap settings in values.yaml file
• Fix assertions for panicking on uniformity with migStrategy=single
• Make priorityClassName configurable through helm
• Move NFD servicAccount info under 'master' in helm chart
• Bump GFD subchart to version 0.6.1
• Allow an empty config file and default to "version: v1"
• Make config fallbacks for config-manager a configurable, ordered list
• Add an 'empty' config fallback (but don't apply it by default)