Can this be updated to the latest Bootstrap and Angular?

[davidrhoderick]

First of all, this generator is missing some Angular components such as angular-aria. Secondly, if someone gets a change, can they update Bootstrap and Angular? I did it on my most recent install because I needed to move a project over that was created with generator-angular but my dependencies were all out of whack. I'm not saying it needs to go to Angular 2 or Bootstrap 4, but Angular 1.4+ or Bootstrap 3.3+ would be good so that directory structures can match what is currently being used.