minor #794 Updated dependencies (javiereguiluz)

This PR was squashed before being merged into the master branch (closes #794).

Discussion
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Updated dependencies

Package operations:
  - Updating symfony/flex (v1.0.71 => v1.0.79)
  - Updating symfony/polyfill-mbstring (v1.7.0 => v1.8.0)
  - Updating symfony/doctrine-bridge (v4.0.6 => v4.0.9)
  - Updating doctrine/doctrine-cache-bundle (1.3.2 => 1.3.3)
  - Updating symfony/inflector (v4.0.6 => v4.0.9)
  - Updating symfony/property-access (v4.0.6 => v4.0.9)
  - Updating paragonie/random_compat (v2.0.11 => v2.0.12)
  - Updating symfony/polyfill-php70 (v1.7.0 => v1.8.0)
  - Updating symfony/http-foundation (v4.0.6 => v4.0.9)
  - Updating symfony/event-dispatcher (v4.0.6 => v4.0.9)
  - Updating symfony/debug (v4.0.6 => v4.0.9)
  - Updating symfony/http-kernel (v4.0.6 => v4.0.9)
  - Updating symfony/security (v4.0.6 => v4.0.9)
  - Updating doctrine/dbal (v2.6.3 => v2.7.1)
  - Updating symfony/dependency-injection (v4.0.6 => v4.0.9)
  - Updating symfony/console (v4.0.6 => v4.0.9)
  - Updating symfony/routing (v4.0.6 => v4.0.9)
  - Updating symfony/finder (v4.0.6 => v4.0.9)
  - Updating symfony/filesystem (v4.0.6 => v4.0.9)
  - Updating symfony/config (v4.0.6 => v4.0.9)
  - Updating symfony/cache (v4.0.6 => v4.0.9)
  - Updating symfony/framework-bundle (v4.0.6 => v4.0.9)
  - Updating doctrine/doctrine-bundle (1.8.1 => 1.9.1)
  - Updating symfony/asset (v4.0.6 => v4.0.9)
  - Updating symfony/expression-language (v4.0.6 => v4.0.9)
  - Updating symfony/options-resolver (v4.0.6 => v4.0.9)
  - Updating symfony/intl (v4.0.6 => v4.0.9)
  - Updating symfony/polyfill-intl-icu (v1.7.0 => v1.8.0)
  - Updating symfony/form (v4.0.6 => v4.0.9)
  - Updating symfony/security-bundle (v4.0.6 => v4.0.9)
  - Updating egulias/email-validator (2.1.3 => 2.1.4)
  - Updating symfony/swiftmailer-bundle (v3.2.1 => v3.2.2)
  - Updating twig/twig (v2.4.6 => v2.4.8)
  - Updating symfony/twig-bridge (v4.0.6 => v4.0.9)
  - Updating symfony/twig-bundle (v4.0.6 => v4.0.9)
  - Updating symfony/translation (v4.0.6 => v4.0.9)
  - Updating symfony/validator (v4.0.6 => v4.0.9)
  - Updating symfony/yaml (v4.0.6 => v4.0.9)
  - Updating symfony/stopwatch (v4.0.6 => v4.0.9)
  - Updating symfony/process (v4.0.6 => v4.0.9)
  - Updating symfony/polyfill-php72 (v1.7.0 => v1.8.0)
  - Updating friendsofphp/php-cs-fixer (v2.10.4 => v2.11.1)
  - Updating symfony/dom-crawler (v4.0.6 => v4.0.9)
  - Updating symfony/browser-kit (v4.0.6 => v4.0.9)
  - Updating symfony/css-selector (v4.0.6 => v4.0.9)
  - Updating symfony/var-dumper (v4.0.6 => v4.0.9)
  - Updating symfony/debug-bundle (v4.0.6 => v4.0.9)
  - Updating symfony/dotenv (v4.0.6 => v4.0.9)
  - Updating symfony/phpunit-bridge (v4.0.6 => v4.0.9)
  - Updating symfony/web-profiler-bundle (v4.0.6 => v4.0.9)
  - Updating symfony/web-server-bundle (v4.0.6 => v4.0.9)
  - Updating zendframework/zend-eventmanager (3.2.0 => 3.2.1)
  - Updating composer/ca-bundle (1.1.0 => 1.1.1)
  - Updating symfony/monolog-bridge (v4.0.6 => v4.0.9)

Commits
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794dc00 Updated dependencies

Author: javiereguiluz