updated version to 2.5
Merge branch '2.4'

* 2.4: (44 commits)
  [FrameworkBundle] Add missing license headers
  Fix parent serialization of user object
  [DependencyInjection] fixed typo
  added condition to avoid skipping tests on JSON_PRETTY support
  add memcache, memcached, and mongodb extensions to run skipped tests
  [DependencyInjection] Fixed support for backslashes in service ids.
  fix #9356 [Security] Logger should manipulate the user reloaded from provider
  [FrameworkBundle] Added extra details in XMLDescriptor to improve container description
  fixed CS
  Crawler default namespace fix
  [BrowserKit] fixes #8311 CookieJar is totally ignorant of RFC 6265 edge cases
  [HttpFoundation] fixed constants that do exist in 2.3 (only in 2.4)
  fix 5528 let ArrayNode::normalizeValue respect order of value array provided
  fix #7243 allow 0 as arraynode name
  Fixed issue in BaseDateTimeTransformer when invalid timezone cause Transformation filed exception (closes #9403).
  BinaryFileResponse should also return 416 or 200 on some range-requets
  fix deprecated usage and clarify constructor defaults for number formatter
  Bumping dependency to ProxyManager to allow testing against the new 0.5.x branch changes
  Do normalization on tag options
  bumped Symfony version to 2.3.9
  ...
Merge branch '2.4'

* 2.4:
  fixed CS
  fixed a typo
  fixed CS for lambdas
  [Yaml] fixed some license headers
  Fixes message value for objects
  Check for hour, minute & second validity
  avoid tables to have apparently long blank line breaks and be too far appart for long nested array params
  fixed various typos
  [Filesystem] Fixed mirror for symlinks
  [Validator] Removed duplicated test for IBAN in data provider
Merge branch '2.4'

* 2.4:
  [Security] fixed pre/post authentication checks
  fixed missing use statements
  Updated lithuanian validator translation: changed vartotojas to naudotojas as it is more proper term.
  Fixed CSS
  [Intl] Added round support for ROUND_CEILING, ROUND_FLOOR, ROUND_DOWN, ROUND_UP
  [HttpFoundation] Throw proper exception when invalid data is passed to JsonResponse class
  addressed == -> === suggestion
  Fixed #9020 - Added support for collections in service#parameters
  fixes PSR-0 issues in tests
  adjusted behavior to always copy override on url files
  Skips test that need full lib-intl.
Merge branch '2.4'

* 2.4:
  udpated LICENSE year
  update year on licenses
  rundown and typo fix
  [Process] Fix #9861 : Revert TTY mode
  [Form] Update minimal requirement in composer.json
  Fix Empty translations with Qt files
  [Console] Fixed command name guessing if an alternative is an alias.
  Update UPGRADE-2.3.md to account for #9388
  [WebProfilerBundle] Fixed profiler toolbar icons for XHTML.
  [BrowserKit] Throw exception on invalid cookie expiration timestamp
  [Propel1Bridge][ModelChoiceList] add exception message for invalid classes