First approach to Bundle/Component architecture
Updated Kreta to "bundle/component" architecture
Merge remote-tracking branch 'origin/master' into feature/update-to-bundle-component-architecture

Conflicts:
	app/config/doctrine.yml
	src/Kreta/Bundle/CoreBundle/Resources/config/doctrine/Issue.orm.yml
	src/Kreta/Bundle/CoreBundle/Resources/config/services.yml
	src/Kreta/Bundle/FixturesBundle/spec/Kreta/Bundle/FixturesBundle/DataFixtures/ORM/LoadIssueDataSpec.php
	src/Kreta/Component/Core/Model/Issue.php
	src/Kreta/Component/Core/spec/Kreta/Component/Core/Model/IssueSpec.php