Add example with visible <label> and input group addon

Also, include visible <label> as a suggestion in the accessibility
callout.

Closes #16773 by merging a tweaked version of it.
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Add changelog file that points to GitHub Releases & our blog

README: Mention where to find changelogs

Update Twitter's address in examples.
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They're no longer on Folsom St.

Add turkish translation

Fix #16755

Removes unnecessary period at end of comment
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Closes #16636 by merging a rebased+tweaked version of it.
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Document that Collapse & Tab methods are async

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Refs #16739
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Refs #16739
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Add Methods section to Popovers nav menu in docs

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Expand ISO in CSS codes for asterisk and plus

I'm using babel and webpack with less-loader to bundle all resources maybe this will cause this issue.

Per https://github.com/twbs/bootstrap/issues/16671#issuecomment-115161001
Refs #16689
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Add Wall of Browser Bugs entry for #15968

Closes #15968.
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Add Wall of Browser Bugs entry for #16671

Closes #16671
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Added *.min.map to "whats-included" sectons.

Re-order popover elements in docs

X-Ref #13969

Include CSS Source Map for bootstrap.min.css

- Update comment as recommended by @cvrebert
- Use `transparent` for `background-color` so we don't need to override that value again in the disabled state.
- Remove disabled changes.

/cc @wonsong

Removes border around <select> caret in IE10+

Clarify that <fieldset> only uses the disabled attribute

Adds @dl-horizontal-breakpoint

Fixed .input-group-addon border-radius

Fix hover border covering active in pagination