diff --git a/knockout.validation/knockout.validation.d.ts b/knockout.validation/knockout.validation.d.ts
index 88c1cc59d..725902e60 100644
--- a/knockout.validation/knockout.validation.d.ts
+++ b/knockout.validation/knockout.validation.d.ts
@@ -1,145 +1,146 @@
-// Type definitions for Knockout Validation
-// Project: https://github.com/ericmbarnard/Knockout-Validation
-// Definitions by: Dan Ludwig <https://github.com/danludwig>
-// Definitions: https://github.com/borisyankov/DefinitelyTyped
-
-/// <reference path="../knockout/knockout.d.ts" />
-
-interface KnockoutValidationGroupingOptions {
-    deep?: bool;
-    observable?: bool;
-}
-
-interface KnockoutValidationConfiguration {
-    registerExtenders?: bool;
-    messagesOnModified?: bool;
-    messageTemplate?: string;
-    insertMessages?: bool;
-    parseInputAttributes?: bool;
-    writeInputAttributes?: bool;
-    decorateElement?: bool;
-    errorClass?: string;
-    errorElementClass?: string;
-    errorMessageClass?: string;
-    grouping?: KnockoutValidationGroupingOptions;
-}
-
-interface KnockoutValidationUtils {
-    isArray(o: any): bool;
-    isObject(o: any): bool;
-    values(o: any): any[];
-    getValue(o: any): any;
-    hasAttribute(node: Element, attr: string): bool;
-    isValidatable(o: any): bool;
-    insertAfter(node: Element, newNode: Element): void;
-    newId(): number;
-    getConfigOptions(element: Element): KnockoutValidationConfiguration;
-    setDomData(node: Element, data: KnockoutValidationConfiguration): void;
-    getDomData(node: Element): KnockoutValidationConfiguration;
-    contextFor(node: Element): KnockoutValidationConfiguration;
-    isEmptyVal(val: any): bool;
-}
-
-interface KnockoutValidationAsyncCallbackArgs {
-    isValid: bool;
-    message: string;
-}
-
-interface KnockoutValidationAsyncCallback {
-    (result: bool): void;
-    (result: KnockoutValidationAsyncCallbackArgs): void;
-}
-
-interface KnockoutValidationRuleDefinition {
-    message: string;
-    validator(value: any, params: any): bool;
-}
-
-interface KnockoutValidationAsyncRuleDefinition extends KnockoutValidationRuleDefinition {
-    async: bool;
-    validator(value: any, params: any, callback: KnockoutValidationAsyncCallback): void;
-}
-
-interface KnockoutValidationAnonymousRuleDefinition {
-    validation: KnockoutValidationRuleDefinition;
-}
-
-interface KnockoutValidationRuleDefinitions {
-    date: KnockoutValidationRuleDefinition;
-    dateISO: KnockoutValidationRuleDefinition;
-    digit: KnockoutValidationRuleDefinition;
-    email: KnockoutValidationRuleDefinition;
-    equal: KnockoutValidationRuleDefinition;
-    max: KnockoutValidationRuleDefinition;
-    maxLength: KnockoutValidationRuleDefinition;
-    min: KnockoutValidationRuleDefinition;
-    minLength: KnockoutValidationRuleDefinition;
-    notEqual: KnockoutValidationRuleDefinition;
-    number: KnockoutValidationRuleDefinition;
-    pattern: KnockoutValidationRuleDefinition;
-    phoneUS: KnockoutValidationRuleDefinition;
-    required: KnockoutValidationRuleDefinition;
-    step: KnockoutValidationRuleDefinition;
-    unique: KnockoutValidationRuleDefinition;
-}
-
-interface KnockoutValidationRule {
-    rule: string;
-    params: any;
-    message?: string;
-    condition?: () => bool;
-}
-
-interface KnockoutValidationErrors {
-    (): string[];
-    showAllMessages(): void;
-    showAllMessages(show: bool): void;
-}
-
-interface KnockoutValidationGroup {
-    errors?: KnockoutValidationErrors;
-    isValid?: () => bool;
-    isAnyMessageShown?: () => bool;
-}
-
-interface KnockoutValidationStatic {
-    init(options?: KnockoutValidationConfiguration, force?: bool): void;
-    configure(options: KnockoutValidationConfiguration): void;
-    reset(): void;
-
-    group(obj: any, options?: any): KnockoutValidationErrors;
-
-    formatMessage(message: string, params: string): string;
-
-    addRule(observable: KnockoutObservableAny, rule: KnockoutValidationRule): KnockoutObservableAny;
-    addRule(observable: KnockoutObservableString, rule: KnockoutValidationRule): KnockoutObservableString;
-    addRule(observable: KnockoutObservableNumber, rule: KnockoutValidationRule): KnockoutObservableNumber;
-    addRule(observable: KnockoutObservableBool, rule: KnockoutValidationRule): KnockoutObservableBool;
-    addRule(observable: KnockoutObservableDate, rule: KnockoutValidationRule): KnockoutObservableDate;
-    addAnonymousRule(observable: KnockoutObservableBase, ruleObj: KnockoutValidationAnonymousRuleDefinition): void;
-
-    insertValidationMessage(element: Element): Element;
-    parseInputValidationAttributes(element: Element, valueAccessor: () => KnockoutObservableBase): void;
-
-    rules: KnockoutValidationRuleDefinitions;
-
-    addExtender(ruleName: string): void;
-    registerExtenders(): void;
-    utils: KnockoutValidationUtils;
-
-    localize(msgTranslations: any): void;
-    validateObservable(observable: KnockoutObservableBase): bool;
-}
-
-interface KnockoutStatic {
-    validation: KnockoutValidationStatic;
-    validatedObservable(initialValue: any): KnockoutObservableBase;
-    applyBindingsWithValidation(viewModel: any, rootNode?: any, options?: KnockoutValidationConfiguration): void;
-}
-
-interface KnockoutSubscribableFunctions {
-    isValid: KnockoutComputed;
-    isValidating: KnockoutObservableBool;
-    rules: KnockoutObservableArray;
-}
-
+// Type definitions for Knockout Validation
+// Project: https://github.com/ericmbarnard/Knockout-Validation
+// Definitions by: Dan Ludwig <https://github.com/danludwig>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../knockout/knockout.d.ts" />
+
+interface KnockoutValidationGroupingOptions {
+    deep?: boolean;
+    observable?: boolean;
+}
+
+interface KnockoutValidationConfiguration {
+    registerExtenders?: boolean;
+    messagesOnModified?: boolean;
+    messageTemplate?: string;
+    insertMessages?: boolean;
+    parseInputAttributes?: boolean;
+    writeInputAttributes?: boolean;
+    decorateElement?: boolean;
+    errorClass?: string;
+    errorElementClass?: string;
+    errorMessageClass?: string;
+    grouping?: KnockoutValidationGroupingOptions;
+}
+
+interface KnockoutValidationUtils {
+    isArray(o: any): boolean;
+    isObject(o: any): boolean;
+    values(o: any): any[];
+    getValue(o: any): any;
+    hasAttribute(node: Element, attr: string): boolean;
+    isValidatable(o: any): boolean;
+    insertAfter(node: Element, newNode: Element): void;
+    newId(): number;
+    getConfigOptions(element: Element): KnockoutValidationConfiguration;
+    setDomData(node: Element, data: KnockoutValidationConfiguration): void;
+    getDomData(node: Element): KnockoutValidationConfiguration;
+    contextFor(node: Element): KnockoutValidationConfiguration;
+    isEmptyVal(val: any): boolean;
+}
+
+interface KnockoutValidationAsyncCallbackArgs {
+    isValid: boolean;
+    message: string;
+}
+
+interface KnockoutValidationAsyncCallback {
+    (result: boolean): void;
+    (result: KnockoutValidationAsyncCallbackArgs): void;
+}
+
+interface KnockoutValidationRuleBase
+{
+    message: string;
+}
+
+interface KnockoutValidationRuleDefinition extends KnockoutValidationRuleBase {
+    validator(value: any, params: any): boolean;
+}
+
+interface KnockoutValidationAsyncRuleDefinition extends KnockoutValidationRuleBase {
+    async: boolean;
+    validator(value: any, params: any, callback: KnockoutValidationAsyncCallback): void;
+}
+
+interface KnockoutValidationAnonymousRuleDefinition {
+    validation: KnockoutValidationRuleDefinition;
+}
+
+interface KnockoutValidationRuleDefinitions {
+    date: KnockoutValidationRuleDefinition;
+    dateISO: KnockoutValidationRuleDefinition;
+    digit: KnockoutValidationRuleDefinition;
+    email: KnockoutValidationRuleDefinition;
+    equal: KnockoutValidationRuleDefinition;
+    max: KnockoutValidationRuleDefinition;
+    maxLength: KnockoutValidationRuleDefinition;
+    min: KnockoutValidationRuleDefinition;
+    minLength: KnockoutValidationRuleDefinition;
+    notEqual: KnockoutValidationRuleDefinition;
+    number: KnockoutValidationRuleDefinition;
+    pattern: KnockoutValidationRuleDefinition;
+    phoneUS: KnockoutValidationRuleDefinition;
+    required: KnockoutValidationRuleDefinition;
+    step: KnockoutValidationRuleDefinition;
+    unique: KnockoutValidationRuleDefinition;
+}
+
+interface KnockoutValidationRule {
+    rule: string;
+    params: any;
+    message?: string;
+    condition?: () => boolean;
+}
+
+interface KnockoutValidationErrors {
+    (): string[];
+    showAllMessages(): void;
+    showAllMessages(show: boolean): void;
+}
+
+interface KnockoutValidationGroup {
+    errors?: KnockoutValidationErrors;
+    isValid?: () => boolean;
+    isAnyMessageShown?: () => boolean;
+}
+
+interface KnockoutValidationStatic {
+    init(options?: KnockoutValidationConfiguration, force?: boolean): void;
+    configure(options: KnockoutValidationConfiguration): void;
+    reset(): void;
+
+    group(obj: any, options?: any): KnockoutValidationErrors;
+
+    formatMessage(message: string, params: string): string;
+
+    addRule<T>(observable: KnockoutObservable<T>, rule: KnockoutValidationRule): KnockoutObservable<T>;
+
+    addAnonymousRule(observable: KnockoutObservableBase, ruleObj: KnockoutValidationAnonymousRuleDefinition): void;
+
+    insertValidationMessage(element: Element): Element;
+    parseInputValidationAttributes(element: Element, valueAccessor: () => KnockoutObservableBase): void;
+
+    rules: KnockoutValidationRuleDefinitions;
+
+    addExtender(ruleName: string): void;
+    registerExtenders(): void;
+    utils: KnockoutValidationUtils;
+
+    localize(msgTranslations: any): void;
+    validateObservable(observable: KnockoutObservableBase): boolean;
+}
+
+interface KnockoutStatic {
+    validation: KnockoutValidationStatic;
+    validatedObservable(initialValue: any): KnockoutObservableBase;
+    applyBindingsWithValidation(viewModel: any, rootNode?: any, options?: KnockoutValidationConfiguration): void;
+}
+
+interface KnockoutSubscribableFunctions {
+    isValid: KnockoutComputed<boolean>;
+    isValidating: KnockoutObservable<boolean>;
+    rules: KnockoutObservableArray<KnockoutValidationRule>;
+}
+