Suggesting 'data-toggle' be preferred over 'rel' in tooltip/popover usage

[BigBlueHat]

This is a documentation-focused commit. The first commit message contains more info--copy/pasted below for "usability":

data-toggle is consistently used throughout Bootstrap for
toggling UI related content. The rel attribute is also
intended for expressing the relationship between the current
URL and the URL being linked to.

In addition (and the initial motiviation for this change),
the HTML5 validator [1] marks the HTML as invalid for using
unregistered rel values.

[1] http://validator.w3.org/

Thanks for considering this change.

[ctalkington]

I agree with this change, even tipsy uses a custom attribute over rel and consistent naming is a plus.

[ctalkington]

you may want to consider doing your changes on 2.0.3-wip branch and resubmitting. it makes it hard to merge in changes if they are based on non-dev branch. 2.0.3 has quite a few changes from 2.0.2.

[BigBlueHat]

Good point. I've been branching off of master, but can change that habit if it's best for pull-requests to be based off the newest wip branch.

It's easy enough to rebase these. Just let me know.

[fat]

yep - please reopen against 2.0.3. I think this is a great patch :)

[danielcha]

As far as I can tell this patch never got resubmitted? And I think it should :-)

As I am still new to Github I don't know how to go about resubmitting this patch. Can someone please resubmbit this patch?