* 2.0:
[FrameworkBundle] Added functional tests.
[Form] Added missing use statements (closes#2880)
[Console] Improve input definition output for Boolean defaults
[SecurityBundle] Changed environment to something unique.
2879: missing space between catch and the brace
#2688: Entities are generated in wrong folder (doctrine:generate:entities Namespace)
[TwigBundle] Fix the exception message escaping
Previously, Boolean defaults were printed as strings, which lead to true and false being printed as "1" and "", respectively. With this change, they are now printed as "true" and "false".
Check that $mode in InputArgument::__construct() is not below 1 to actually look if any of the flags are set.
Check that $mode in InputOption::__construct() is not below 1 to actually look if any of the flags are set.
Check for the correct parameter type, as in InputOption (integer).
InputArgumentTest: Added test for negative integer $mode parameter input in constructor.
InputOptionTest: Added test for negative integer $mode parameter input in constructor.
To keep language consistent, three methods were changed in InputOption:
* `InputOption::acceptParameter()` -> `InputOption::acceptValue()`
* `InputOption::isParameterRequired()` -> InputOption::isValueRequired()`
* `InputOption::isParameterOptional()` -> `InputOption::isValueOptional()`
The InputDefinition::asXml() method was also modified to update the `accept_value` and `is_value_required` attributes.
