change how components are included to support angular 4
change how components are included to support angular 4

dschnelldavis/angular2-json-schema-form,boydy12/angular2-json-schema-form-core,iknowhow-sa/angular2-json-schema-form,boydy12/angular2-json-schema-form-core,iknowhow-sa/angular2-json-schema-form,dschnelldavis/angular2-json-schema-form,boydy12/angular2-json-schema-form-core,dschnelldavis/angular2-json-schema-form,iknowhow-sa/angular2-json-schema-form