Improvements into Util directory
First approach to Bundle/Component architecture
Updated Kreta to "bundle/component" architecture
Added Resolution and Status to the model
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
Now, resolution is nullable in Issue model
Updated dependencies (critical for assetic bundle)
Added and loaded HWIOAuthBundle
Configured OAuth to work with FOSUserBundle
Minor improvements and initial specs
Changes to make OAuth work
Fixed typo in provider name
Changed column name
Persist new user and ensure all required fields are not empty
Avoid empty email errors
Fixed email check
Fallback for blank email
Updated Vagrant submodule

- This version of VM adds sass and compass
Merge remote-tracking branch 'origin/feature/oauth'

Conflicts:
	app/config/config.yml
	composer.lock
	src/Kreta/CoreBundle/Resources/config/services.yml
Updated Vagrant