symfony/symfony — pull request #9724 by lvshuang (2013-12-08 18:32:36+00:00)
Title: [HttpFoundation] add file mime type extension guesser for .xls and .dll

| Bug fix? | [no]
| New feature? | [yes]
| BC breaks? | [yes]
| Deprecations? | [no]
| Tests pass? | [yes]
| Fixed tickets | [no]
| License | MIT
| Doc PR | [no]