Removed post install step to not depend on gulp.
Removed post install step to not depend on gulp.

ZmbGmbH/ng2-md-datatable,ZmbGmbH/ng2-md-datatable,fredguile/ng2-md-datatable,ZmbGmbH/ng2-md-datatable,fredguile/ng2-md-datatable,fredguile/ng2-md-datatable