<p dir="auto">It should be possible to pick and choose which media queries one wishes to include in bootstrap.css. This is in response to this issue:<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3117063" data-permission-text="Title is private" data-url="https://github.com/twbs/bootstrap/issues/1784" data-hovercard-type="issue" data-hovercard-url="/twbs/bootstrap/issues/1784/hovercard" href="https://github.com/twbs/bootstrap/issues/1784">#1784</a></p>
<p dir="auto">.attr('checked',false) unchecks the checkboxes, but .attr('checked',true)  doesn't check them. You should use .prop('checked') instead of .attr('checked') and .is(':checked')</p>