How to install Boostrap 4-beta.2 in Angular 4+ as a dependency.
This has been updated to use Bootstrap Beta.2 (Latest stable) as of Jan. 6, 2018.
This also works with Angular 5.
I'm aware that Beta.3 has been released, however there is a bug with ng5 and Beta.3, so sticking with Beta.2 is your best bet for now. I'll update when the bug is fixed.
How to install Boostrap 4-beta in Angular as a dependency, not with a CDN.