add .sr-only-focusable; fixes #12259
update docs to include+use .sr-only-focusable
replace .visible-{size} with .visible-{size}-{display} ; fixes #8869
Remove redundant parens
Rename generateRawFilesJs to generateRawFiles
fixes #9836
grunt
Merge pull request #12983 from twbs/fat-9836

fixes #9836
Merge branch 'master' into sr-only-focusable

Conflicts:
	dist/css/bootstrap.css
document position relative firefox bug; cleanup some stuff in the browser bugs page
grunt
Remove unneeded quotes.
Don't ignore every dot file in Bower
Merge branch 'master' into sr-only-focusable
Merge pull request #12679 from twbs/sr-only-focusable

add .sr-only-focusable
grunt
Merge pull request #12989 from twbs/bower_ignore

Don't ignore every dot file in Bower
Document #12476 bug in the wall of bugs
Merge branch 'master' of github.com:twbs/bootstrap
Document shitty situation of multiple .navbar-right classes in #12951