message: Fix VS2017 Regex to identify visual studio
diff: @@ -27,6 +27,7 @@ if (workername === undefined) {
  const KITS_BY_PLATFORM: {[os: string]: KitEnvironment[]} = {
  ['DevPC']: [
  + {defaultKit: 'Visual Studio Community 2017', expectedDefaultGenerator: 'Visual Studio 15 2017', path: ['c:\\Temp']},
  {defaultKit: 'VisualStudio.14.0', expectedDefaultGenerator: 'Visual Studio 14 2015', path: ['c:\\Temp']},
  {
  defaultKit: 'GCC',
  @@ -76,7 +77,7 @@ interface CMakeContext {
  buildSystem: KitEnvironment;
  }
  -function isPreferedGeneratorInKit(defaultKit: string): boolean { return defaultKit.startsWith('VisualStudio'); }
  +function isPreferedGeneratorInKit(defaultKit: string): boolean { return RegExp("^Visual[ ]{0,1}Studio").test(defaultKit); }
  function skipTestWithoutPreferredGeneratorInKit(testContext: any, context: CMakeContext): void {
  if (!isPreferedGeneratorInKit(context.buildSystem.defaultKit)) {
  @@ -94,7 +95,7 @@ function skipTestWithPreferredGeneratorInKit(testContext: any, context :CMakeCon
  function makeExtensionTestSuite(name: string,
  expectedBuildSystem: KitEnvironment,
  cb: (context: CMakeContext) => void) {
  - suite.only(name, () => {
  + suite(name, () => {
  const context = {buildSystem: expectedBuildSystem} as CMakeContext;
  suiteSetup(async function(this: Mocha.IBeforeAndAfterContext) {
  