Update mixins.less

Add a the function .make-small-column. See also http://stackoverflow.com/a/17308128/1596547
Remove unneeded prefixes

Per caniuse, prefixes for transitions and transforms can be reduced to just `-webkit` and `-ms`. http://caniuse.com/#search=transform
http://caniuse.com/#search=transition
Carousel no longer dependent on glyphicons

Used laquo/raquo for control buttons
Updated docs
fixes #8477: use var for rounded image border-radius
fixes #7880
Merge branch '3.0.0-wip' of github.com:twitter/bootstrap into 3.0.0-wip
Drop `.nav-header` for `.dropdown-header`

* Since we no longer have `.nav-list`, I've nuked the `.nav-header`
* However, dropdowns can still have section headings, so I've kept that
around with the addition of `.dropdown-header`
* Restyled it a smidge as well
Bump tooltips to use `@font-size-small` (11px to 12px)
Fixes #8441: remove `@font-size-mini`
Merge branch '3.0.0-wip' of github.com:twitter/bootstrap into 3.0.0-wip
make on collapse changes
Fixes #8452: adds `.active` to table classes
Vurrriables and shit
Merge branch '3.0.0-wip' of https://github.com/mauricew/bootstrap into mauricew-3.0.0-wip
change characters
Merge pull request #8380 from joeybaker/patch-1

Remove unneeded prefixes from some mixins
run make on mixin changes from #8380
Merge branch 'patch-1' of https://github.com/bassjobsen/bootstrap into bassjobsen-patch-1
spacing and local var rename
get button js working with actual form elements p cooll