HV-725 Aligning packages of reference guide examples with document structure
HV-725 Splitting chapter 2 into three chapters for bean constraints, method constraints and message interpolation
HV-725 Updating chapter on message interpolation
HV-725 Updating chapter on method validation
HV-725 Updating chapter on bean validation
HV-725 Updating bootstrapping chapter
HV-725 Misc. formatting and clean-ups
HV-725 Updating chapter on custom options
HV-725 Fixing broken links