Fix layout for examples in getting-started

BS3 commit ddf95c9
Fix for carousel indicators

BS3 commit b5095d3
Grid updates

BS3 commit 19d0726
using screen-size variables for grids

BS3 commit b62fa23
update navbar responsive break variable

BS3 commit 2f70477
Fix navbar toggles

BS3 commit e787e5f
Move the grid offset, push, and pull classes to be tablets-up instead of desktop-up

BS3 commit 21441f1
use the new vertical gradient signature