ShinyForm               Class representing a ShinyForm form.
Validator               Class representing a Validator.
ValidatorMaxLength      Validator enforcing maximum length.
ValidatorMinLength      Validator requiring minimum length.
ValidatorNonEmpty       Validator requiring non-emptiness.
ValidatorRequired       Validator requiring a input (e.g. checked
                        checkbox).
addHelpText             Adds a help icon to an input.
addValidationSuffix     Appends a validation suffix to a string.
createHelpIcon          Creates a shinyreforms help icon and pop-up.
getInputId              Returns an ID of an input tag.
shinyReformsDependency
                        Constructs a shinyreforms dependency.
shinyReformsPage        Adds a shinyreforms dependency to a tag object.
validatedInput          Add validator to a Shiny input.
