add appveyor config (#460)
add appveyor config (#460)


ncfxy/tsickle,drjanitor/tsickle,angular/tsickle,lucidsoftware/tsickle,drjanitor/tsickle,angular/tsickle,ncfxy/tsickle,drjanitor/tsickle,lucidsoftware/tsickle,drjanitor/tsickle,alexeagle/tsickle,alexeagle/tsickle,lucidsoftware/tsickle,alexeagle/tsickle,ncfxy/tsickle