Fix coding standards
Fixing default plugin manager no longer needs LanguageManager. Chasing fixed core issue https://drupal.org/node/2281905.
Revert changes to anbotation key
Revert variable name changes from camel case to lower case
Merge pull request #42 from drupal-media/2281905-plugin-manager-no-language

Update EntityEmbedDisplayManager no longer needs LanguageManager.
Added EntityEmbedDisplayManager::getDefinitionOptionsForEntity().
Revert variable name changes from camel case to lower case
Merge pull request #41 from cs-shadow/code-cleanup

Fixed coding standards.