Deprecate container-{device} vars for container-{size} classes; updates customizer and grid to do the same
Fixes #10154: add .small
Make custom max-width on row conform to Boostrap convention

Bootstrap break point for tablet portrait 768 keeps the row intact, so it's not appropriate to have off-canvas elements at that width. Custom off-canvas.css should be breakpoint 767px
use direct-child selector more in table styles to better support nested tables; fixes #10231
Parameterize @breadcrumb-separator
Update index.html

Updated text in the jumbotron container to reflect the Bootstrap 3 change from hero unit to jumbotron. (Wasn't sure if it should be 'a Jumbotron' or just 'Jumbotron' though...
Base the navbar default brand hover color on default brand color

IMHO this default is better
Prevent X-scroll on small screens

html overflow-x must be hidden to prevent accidental x-scroll on small screens. This is more apparent with touch screens, where the user often gestures diagonally instead of a true vertical gesture.
Add a change to the progress bar. 

In v3 the inner progress bar should have .progress-bar not .bar
More concise 'fastest way' statement, and consistency with the text of the Download button
more refactoring of the 'Getting started' section towards more succinct and active wording.
Moved "Major class changes" section; Added progress-bar-*
Getting started docs: tweaks to the _Basic template_ section
Merge branch 'master' of github.com:twbs/bootstrap
Replace invalid US-ASCII character "\xE2")

Replace invalid US-ASCII character "\xE2") '—' => '-'
Merge branch 'breadcrumb-separator' of https://github.com/dancek/bootstrap into dancek-breadcrumb-separator
Merge branch 'patch-1' of https://github.com/tagliala/bootstrap into tagliala-patch-1
Merge pull request #10323 from StevenBlack/GSEdits3

Getting started docs: tweaks to the _Basic template_ section
Merge pull request #10299 from StevenBlack/GettingStartedEdits1

'Getting started' section: refactoring for succinctness, active voice, and consistency with button and link captions.
Merge branch 'master' of github.com:twbs/bootstrap