Changed last-child to first-child
As noted by @jerem the first child will actually be the last shown
replace js scrollspy test for default behavior
Allow tabs to fade in if no initially active pane is present; fixes #13814
Add a few more cases to the visual test tab page
assign background to row of .table-striped

if background is not set on row, striping doesn't work properly in responsive tables where row and cells are set to  display: block.
removing redundant background declarations on TDs
Added @gray-base variable to make @gray-{shade} reference, also allows @gray-base to be modified with less#modifyVars and the vars to cascade
Fixed @gray-base value being once space short
docs: use valid JSON in compound option value examples

Fixes #13874.
[skip sauce]
Use mousedown instead of click for backdrop click detection; fixes #13816
Only close modal if escape was hit with keydown; fixes #13929
possible fix for #14013
Add collapsed default class to navbar-toggle
Remove superfluous cursor:pointer
Merge pull request #14030 from BBosman/double-cursor

Remove superfluous cursor:pointer
trigger 'affixed.bs.affix' instead of 'affixed'

Original is triggering `affixed` not `affixed.bs.affix`, only `.on('affixed.bs.affix', ...)` also catch `affixed` event.

Closes #13998.
no need to create $.Event

`trigger()` can handle string argument
Merge pull request #13998 from steelywing/patch-1
Merge pull request #13986 from twbs/address-13874

docs: use valid JSON in compound option value examples
Mark the `remote` option of the Modal plugin as deprecated.

Follow-up to https://github.com/twbs/bootstrap/issues/13087#issuecomment-46563760
Closes #13087 as WONTFIX.
Closes #13597 as WONTFIX.