Release v1.21

• Updated jscsrc item template to use the correct file
• Added Angular 2 TypeScript Service template
• Added Angular 2 TypeScript Component template
• Added Angular 2 TypeScript Pipe template
• Changed the AngularJs directive templates to fix a bug with the usage comments issue #285
• Updated Angular TypeScript templates to reflect changes made to the Angular type definitions
• Added Unit Test Run Settings template
• Updated Project Template - The packages of Nancy project templates
• Updated Project Template - The framework versions of Nancy project templates are set to 4.6.1