Bump symfony/symfony from 2.6.4 to 2.8.52

[dependabot[bot]]

Bumps symfony/symfony from 2.6.4 to 2.8.52.

Release notes

Sourced from symfony/symfony's releases.

v2.8.52

Changelog (since https://github.com/symfony/symfony/compare/v2.8.51...v2.8.52)

• security #cve-2019-18888 [HttpFoundation] fix guessing mime-types of files with leading dash (@​nicolas-grekas)
• security #cve-2019-18887 [HttpKernel] Use constant time comparison in UriSigner (@​stof)

[PR] symfony/symfony#34349 [SECURITY] Security release

v2.8.50

Changelog (since https://github.com/symfony/symfony/compare/v2.8.49...v2.8.50)

• security #cve-2019-10910 [DI] Check service IDs are valid (@​nicolas-grekas)
• security #cve-2019-10909 [FrameworkBundle][Form] Fix XSS issues in the form theme of the PHP templating engine (@​stof)
• security #cve-2019-10912 [PHPUnit Bridge] Prevent destructors with side-effects from being unserialized (@​nicolas-grekas)
• security #cve-2019-10911 [Security] Add a separator in the remember me cookie hash (@​pborreli)
• security #cve-2019-10913 [HttpFoundation] reject invalid method override (@​nicolas-grekas)

[PR] symfony/symfony#31145 [SECURITY] Security release

v2.8.49

Changelog (since https://github.com/symfony/symfony/compare/v2.8.48...v2.8.49)

• security #cve-2018-19790 [Security\Http] detect bad redirect targets using backslashes (@​xabbuh)
• security #cve-2018-19789 [Form] Filter file uploads out of regular form types (@​nicolas-grekas)

[PR] symfony/symfony#29487 [SECURITY] Security release

v2.8.48

Changelog (since https://github.com/symfony/symfony/compare/v2.8.47...v2.8.48)

• bug #28917 [DoctrineBridge] catch errors while converting to db values in data collector (@​alekitto)
• bug #27314 [DoctrineBridge] fix case sensitivity issue in RememberMe\DoctrineTokenProvider (@​PF4Public)
• bug #29308 [Translation] Use XLIFF source rather than resname when there's no target (@​thewilkybarkid)
• bug #26244 [BrowserKit] fixed BC Break for HTTP_HOST header (@​brizzz)
• bug #28147 [DomCrawler] exclude fields inside "template" tags (@​Gorjunov)
• bug #29271 [HttpFoundation] Fix trailing space for mime-type with parameters (@​Sascha Dens)
• bug #29223 [Validator] Added the missing constraints instance checks (@​thomasbisignani)
• bug #29182 [Form] Fixed empty data for compound date types (@​HeahDude)
• bug #29185 [Form] Fixed keeping hash of equal \DateTimeInterface on submit (@​HeahDude)
• bug #28731 [Form] invalidate forms on transformation failures (@​xabbuh)
• bug #29152 [Config] Unset key during normalization (@​ro0NL)
• bug #29057 [HttpFoundation] replace any preexisting Content-Type headers (@​nicolas-grekas)

[PR] symfony/symfony#29333

v2.8.47

Changelog (since https://github.com/symfony/symfony/compare/v2.8.46...v2.8.47)

... (truncated)

Commits

• 88f3ef6 Merge pull request #34349 from fabpot/release-2.8.52
• 44dbe04 updated VERSION for 2.8.52
• be612fe updated CHANGELOG for 2.8.52
• 2d6bf2e Fix CHANGELOG
• af70ccb security #cve-2019-18888 [HttpFoundation] fix guessing mime-types of files wi...
• d41bd42 security #cve-2019-18887 [HttpKernel] Use constant time comparison in UriSign...
• 2dfc115 [HttpFoundation] fix guessing mime-types of files with leading dash
• 9a50fc5 [HttpKernel] Use constant time comparison in UriSigner
• 78d86f8 bumped version
• d4843fe fixed version
• Additional commits viewable in compare view

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