Note: formatError is renamed to customFormatErrorFn. formatError is still avaible in this release but will be droped in v1.0.0.

New

• Add support for customValidateFn. (#479 @jamesmoriarty)
• Rename formatError to customFormatErrorFn. (#479 @jamesmoriarty)
• Add support for customExecuteFn. (#391 @IvanGoncharov)