* 2.7:
The exception should be thrown if an object doesn't implement Traversable AND doesn't implement Countable, not when it doesn't implement Traversable but DOES implement Countable
[Form] fix violation mapper tests
[HttpKernel] Prevent a fatal error when DebugHandlersListener is used with a kernel with no terminateWithException() method
don't rely on deprecated YAML parser feature
* 2.6:
Added 'default' color
[HttpFoundation] Reload the session after regenerating its id
[HttpFoundation] Add a test case to confirm a bug in session migration
[2.6] Static Code Analysis for Components and Bundles
[Finder] Command::addAtIndex() fails with Command instance argument
[DependencyInjection] Freeze also FrozenParameterBag::remove
[Twig][Bridge] replaced `extends` with `use` in bootstrap_3_horizontal_layout.html.twig
fix CS
fixed CS
Add a way to reset the singleton
[Security] allow to use `method` in XML configs
Remove duplicate example
Remove var not used due to returning early (introduced in 8982c32)
Enhance hhvm test skip message
Using question helper and choices questions:
- first choice was not selectable by value.
- ChoiceList with associative choices with mixed string and int keys has same issue with first choice. Add test for all choices.
- Fix inconsistency by always returning values as strings
