twbs/bootstrap — pull request #12430 by mikkotikkanen (2014-01-30 10:03:55+00:00)
Title: Added !important switches to text alignments

In order to use the classes effectively fe. overriding alignments for reusable blocks that are defined in custom css. !importants can always be re-overridden in the custom css. Alternatively could be done with .text-left-important classes.