feature #292 Update Symfony up to latest 2.8.1 and other dependencies (bocharsky-bw)
feature #292 Update Symfony up to latest 2.8.1 and other dependencies (bocharsky-bw)

This PR was merged into the master branch.

Discussion
----------

Update Symfony up to latest 2.8.1 and other dependencies

Due to Symfony 2.8.1 [release](http://symfony.com/blog/symfony-2-8-1-released).

List of updated dependencies:
```
  - Removing symfony/polyfill-util (v1.0.0)
  - Installing symfony/polyfill-util (v1.0.1)

  - Removing paragonie/random_compat (1.1.1)
  - Installing paragonie/random_compat (1.1.4)

  - Removing symfony/polyfill-php70 (v1.0.0)
  - Installing symfony/polyfill-php70 (v1.0.1)

  - Removing symfony/polyfill-php56 (v1.0.0)
  - Installing symfony/polyfill-php56 (v1.0.1)

  - Removing symfony/polyfill-php55 (v1.0.0)
  - Installing symfony/polyfill-php55 (v1.0.1)

  - Removing symfony/polyfill-php54 (v1.0.0)
  - Installing symfony/polyfill-php54 (v1.0.1)

  - Removing symfony/polyfill-mbstring (v1.0.0)
  - Installing symfony/polyfill-mbstring (v1.0.1)

  - Removing symfony/symfony (v2.8.0)
  - Installing symfony/symfony (v2.8.1)

  - Removing symfony/polyfill-intl-icu (v1.0.0)
  - Installing symfony/polyfill-intl-icu (v1.0.1)

  - Removing symfony/security-acl (v2.7.7)
  - Installing symfony/security-acl (v2.7.8)

  - Removing doctrine/cache (v1.5.1)
  - Installing doctrine/cache (v1.5.4)

  - Removing doctrine/common (v2.5.1)
  - Installing doctrine/common (v2.5.3)

  - Removing sensio/distribution-bundle (v5.0.2)
  - Installing sensio/distribution-bundle (v5.0.3)

  - Removing sensio/framework-extra-bundle (v3.0.11)
  - Installing sensio/framework-extra-bundle (v3.0.12)

  - Removing sensio/generator-bundle (v3.0.0)
  - Installing sensio/generator-bundle (v3.0.3)

  - Removing doctrine/dbal (v2.5.2)
  - Installing doctrine/dbal (v2.5.3)
```

Commits
-------

ed0345f Update Symfony up to latest 2.8.1 and other dependencies

symfony/symfony-demo,yodur2potassium/test-behat-selenium-symfo,TomasVotruba/symfony-demo,yceruto/symfony-demo,javiereguiluz/symfony-demo,AntoineToubhans/symfony-demo,healthefrog/symfony-demo,yceruto/symfony-demo,healthefrog/symfony-demo,vakstk50/jenkinstest,cristi-contiu/symfony-demo,voronkovich/symfony-demo,jzawadzki/symfony-demo,GregSatre/symfony-demo,mrook/symfony-behat-codeception-demo,rasanga/symfony-demo,mrook/symfony-behat-codeception-demo,TomasVotruba/symfony-demo,jzawadzki/symfony-demo,Codeception/symfony-demo,TomasVotruba/symfony-demo,mrook/symfony-behat-codeception-demo,yceruto/symfony-demo,maidmaid/symfony-demo,AntoineToubhans/symfony-demo,bocharsky-bw/symfony-demo,Codeception/symfony-demo,voronkovich/symfony-demo,samitiana/symfony-demo,javiereguiluz/symfony-demo,rasanga/symfony-demo,cristi-contiu/symfony-demo,healthefrog/symfony-demo,loicgelle/symfony-demo,samitiana/symfony-demo,vakstk50/jenkinstest,loicgelle/symfony-demo,ReLexEd/symfony-demo,nilamkhedkar1/symfony_demo,samitiana/symfony-demo,rasanga/symfony-demo,dzuelke/symfony-demo,yodur2potassium/test-behat-selenium-symfo,jzawadzki/symfony-demo,Samox/symfony-demo,voronkovich/symfony-demo,nilamkhedkar1/symfony_demo,Samox/symfony-demo,javiereguiluz/symfony-demo,Samox/symfony-demo,Codeception/symfony-demo,symfony/symfony-demo,cristi-contiu/symfony-demo,gliderShip/symfony_demo,loicgelle/symfony-demo,bocharsky-bw/symfony-demo,gliderShip/symfony_demo,vakstk50/jenkinstest,bocharsky-bw/symfony-demo,yodur2potassium/test-behat-selenium-symfo,dzuelke/symfony-demo,ReLexEd/symfony-demo,GregSatre/symfony-demo,symfony/symfony-demo,GregSatre/symfony-demo,GregSatre/symfony-demo,maidmaid/symfony-demo,AntoineToubhans/symfony-demo,ReLexEd/symfony-demo,dzuelke/symfony-demo,nilamkhedkar1/symfony_demo,maidmaid/symfony-demo,gliderShip/symfony_demo,AntoineToubhans/symfony-demo,Samox/symfony-demo