Grunt Fails with Bower Package

Created by: ZaLiTHkA

Apologies if this has already been reported, I looked but didn't see anything about this issue specifically (unless it's related in some way to the comments in #12504?)..

The bower.json line 18 excludes the docs folder, while Gruntfile.js lines 20-22 try to load files from the (now missing) docs folder and the build fails.

I'm busy cloning the main repo into another folder to copy over the missing files, but surely if these are required to build the .less files, then they should be moved to a folder that isn't excluded?

Edit: Just to confirm, after copying the docs/ folder into my project's bower_components/bootstrap/ folder, the grunt build worked perfectly.