v1.10.0-rc.1

Added

• #146: Underscore.js support
• #110: Item constraint that requires an exact value match
• #108: Finer grained control over whether null and missing values are accepted
• #127: Immutable constraints that treat null and missing values as different
• #128: Equality constraint that treats null and missing values as different
• #176: UUID data validation type

Changed

• #118: Embed indent.js as a static dependency
• #174: Reorganize project source structure

Deprecated

• etc/test-helper.js module
• etc/validation-error-message-formatter.js module