Rename docs/LICENSE-DOCS to docs/LICENSE

It sounded weird.
refactoring: add & use .text-emphasis-variant() mixin
refactoring: add & use .bg-variant() mixin
add & use @modal-md Less var for uniformity
remove border radius when it's not both ends in panel
Merge branch 'master' into text-emphasis-variant
Merge branch 'master' into bg-variant
Merge branch 'master' into modal-md
Merge pull request #12247 from twbs/text-emphasis-variant

refactoring: add & use .text-emphasis-variant() mixin
Merge pull request #12249 from twbs/modal-md

add & use @modal-md Less var for uniformity
Merge pull request #12286 from watilde/fixes-panel

Fixes #12263: Remove border radius when it's not both ends in panel
Merge branch 'master' into bg-variant

Conflicts:
	less/mixins.less
Run grunt dist after adding 'a' requirement to the text emphasis classes
Fix typos, sentences in getting-started.html
Merge pull request #12248 from twbs/bg-variant

refactoring: add & use .bg-variant() mixin
Merge pull request #12219 from ZDroid/rn

Rename docs/LICENSE-DOCS to docs/LICENSE
link to docs license
Add table's .info variant to migration guide
Merge pull request #12287 from Quy/master

Add table's .info variant to migration guide
Added WAI-ARIA roles to examples/theme/index.html (document, main)

https://en.wikipedia.org/wiki/WAI-ARIA

http://www.w3.org/TR/wai-aria/roles