[WIP] Added slideshow block and CmfMedia

[rmsint]

_Do not merge, the source branch of this PR needs to be changed to prepare-next-version._

Can be used to test CmfMedia

To test:

• checkout this PR
• add the MediaBundle and LiipImagineBundle to composer (dev-master)

composer require liip/imagine-bundle symfony-cmf/media-bundle

• checkout these PRs - they need to be merged first, before this PR can be merged:
  • [WIP] model + adapters media-bundle#5 - merged
  • CreateBundle media-bundle#27
  • Update ImagineBlock to use CmfMedia image block-bundle#72
  • Removed image document doctrine/phpcr-odm#293
  • Removed all image code doctrine/DoctrinePHPCRBundle#72
  • Update to use CmfMedia Image create-bundle#60
• checkout the following packages to the latest master:
  • phpcr/phpcr-utils
  • sonata-project/admin-bundle
  • sonata-project/block-bundle
• run app/console doctrine:phpcr:repository:init - creates /cms/media

TODO to finish:

• rebase this PR on the prepare-next-release branch - the related block bundle PR (Update ImagineBlock to use CmfMedia image block-bundle#72) must be rebased first
• update cmf_block.imagine.multilang_slideshow_admin to updated block
• update create image config
• close this PR and create a new one setting the branch source to the prepare-next-release branch

[rmsint]

rebased on recent master and updated AdminDashboardTest

[dbu]

should these not be default values and not need to be specified?

[rmsint]

yes, will look into this.

[dbu]

imo its ok to not add fixtures in this PR, there is #132 for that.

[rmsint]

Moved to a new PR to change the source branch to prepare-next-version: #195