Update dataprotocol client (#418)

* close

* connection is working

* formatting

* adds all

* formatting

* removed unneeded logging

* readd npm shrinkwrap

* addressed comments

* fix capabilities cacheing

* updated shrinkwrap

* fixed tests

* remove dead code

dataprotocol-node/client/src/utils/is.ts

@@ -1,55 +0,0 @@
-/* --------------------------------------------------------------------------------------------
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the Source EULA. See License.txt in the project root for license information.
- * ------------------------------------------------------------------------------------------ */
-'use strict';
-
-const toString = Object.prototype.toString;
-
-export function defined(value: any): boolean {
-	return typeof value !== 'undefined';
-}
-
-export function undefined(value: any): boolean {
-	return typeof value === 'undefined';
-}
-
-export function nil(value: any): boolean {
-	return value === null;
-}
-
-export function boolean(value: any): value is boolean {
-	return value === true || value === false;
-}
-
-export function string(value: any): value is string {
-	return toString.call(value) === '[object String]';
-}
-
-export function number(value: any): value is number {
-	return toString.call(value) === '[object Number]';
-}
-
-export function error(value: any): value is Error {
-	return toString.call(value) === '[object Error]';
-}
-
-export function func(value: any): value is Function {
-	return toString.call(value) === '[object Function]';
-}
-
-export function array<T>(value: any): value is T[] {
-	return Array.isArray(value);
-}
-
-export function stringArray(value: any): value is string[] {
-	return array(value) && (<any[]>value).every(elem => string(elem));
-}
-
-export function typedArray<T>(value: any, check: (value: any) => boolean): value is T[] {
-	return Array.isArray(value) && (<any[]>value).every(check);
-}
-
-export function thenable<T>(value: any): value is Thenable<T> {
-	return value && func(value.then);
-}