Fix handling of btn-group placed inside input-group-btn (used for mixing dropdowns with normal buttons)
Downgrade Safari and OS X
Merge pull request #11916 from ZDroid/fix-iversions

Downgrade Safari and OS X
Merge pull request #11910 from InWayOpenSource/btn-group-inside-input-group-btn

Fix handling of .btn-group placed inside .input-group-btn
fix href of "Browser and device support"
Merge pull request #11923 from wangsai/fix-id

fix href of "Browser and device support"
Add pull-right & pull-left to support both ltr & rtl
Merge properties inside a block
Bug fixes
grunt dist
Merge branch 'master' of https://github.com/twbs/bootstrap