add unit tests for Carousel slid events
README: Authors => Creators
Add direction & relatedTarget properties to slid.bs.carousel event
Fixes #13393
Document .direction & .relatedTarget properties of Carousel events.
Fixes #13395
add script to warn folks trying to test old IE using IE's unreliable emulation modes
remove semicolons :'-(
add IE warning scripts to linter config
Merge pull request #13414 from twbs/readme-tweak

README: Authors => Creators
fix #13427
Document that @import-ing Bootstrap can break the icon font path

Addresses part of #13429.
change 'slid' comments per @fat's feedback
Carousel.slide: rename e => slideEvent
Merge pull request #13396 from twbs/carousel-events

Carousel event properties
Update JSZip to v2.2.1.
Update holder.js to v2.3.2.
Run `grunt`.
Minor Spacing fixes

Flagged upstream in bootstrap-sass by scss-lint
Merge pull request #13439 from nschonni/spacing-fixes

Minor Spacing fixes
Merge pull request #13435 from twbs/doc-less-import-glyphicons

Document that @import-ing Bootstrap can break the icon font path
add ie-emulation-modes-warning.js to docs & examples