Fixed button link in button component
updated panel docs - added panel box teaser
sortable more info on event
Merge branch 'master' of github.com:uikit/uikit
Fixed links in overlay-area-content
customizer memorize last used theme
Merge branch 'master' of github.com:uikit/uikit
more markdown area events introduced
fixed default theme in tests
Updated links in base component
Fixed cursor in sortable add-on
updated changelog
Merge branch 'master' of github.com:uikit/uikit

Conflicts:
	CHANGELOG.md
url resolver fixed
Better comments for compiled CSS
Removed uk-button-expand
Updated button component
Removed vertical align from breadcrumbs
Merge branch 'master' of github.com:uikit/uikit
updated comments in add-ons
updated docs - button
updated docs - button
Added more variables to tab component
cleanup