unify constructor initialization style throughout symfony
unify and fix callable phpdoc throughout symfony
minor #9487 unify constructor initialization style throughout symfony (Tobion)

This PR was merged into the master branch.

Discussion
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unify constructor initialization style throughout symfony

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | n/a

In almost all classes symfony uses property initialization when the value is static. Constructor initialization is only used for things that actually have logic, like passed parameters or dynamic values. IMHO it makes the code much more readable because property definition, phpdoc and default value is in one place. Also one can easily see what the constructor implements for logic like overridden default value of a parent class. Otherwise the real deal is just hidden behind 10 property initializations. One more advantage is that it requires less code. As you can see, the code was almost cut in half (210 additions and 395 deletions).
I unified it accordingly across symfony. Sometimes it was [not even consistent within one class](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Config/Definition/BaseNode.php#L32). At the same time I recognized some errors like missing parent constructor call, or undefined properties or private properties that are not even used.

I then realized that a few Kernel tests were not passing because they were deeply implementation specific like modifying booted flag with a custom `KernelForTest->setIsBooted();`. I improved and refactored the kernel tests in the __second commit__.

__Third commit__ unifies short ternary operator, e.g. `$foo ?: new Foo()`. __Forth commit__ unifies missing parentheses, e.g. `new Foo()`.

Commits
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077a089 unify missing parentheses
2888594 unify short ternary operator
2a9daff [HttpKernel] better written kernel tests
111ac18 unify constructor initialization style throughout symfony
updated version to 2.5
fixed some typos
Merge branch '2.2' into 2.3

* 2.2:
  fixed some typos
  fixed @expectedException class names

Conflicts:
	src/Symfony/Component/Config/Tests/Definition/ArrayNodeTest.php
	src/Symfony/Component/Console/Tests/Command/CommandTest.php
	src/Symfony/Component/Locale/Tests/Stub/StubLocaleTest.php
	src/Symfony/Component/Locale/Tests/Stub/StubNumberFormatterTest.php
Merge branch '2.3' into 2.4

* 2.3:
  Fixed mistake in upgrade docu
  Container::camelize also takes backslashes into consideration
  fixed typos
  fixed @expectedException class names
  fixed some typos
  fixed @expectedException class names
  Typo and better wording for german validator translation
Merge branch '2.4'

* 2.4:
  [HttpKernel] fixed regression introduced in 2.4 in the base DataCollector class. Added more unit tests coverage for the RequestDataCollector object.
  Fixed mistake in upgrade docu
  bumped Symfony version to 2.4.0
  updated VERSION for 2.4.0-RC1
  updated CHANGELOG for 2.4.0-RC1
  Container::camelize also takes backslashes into consideration
  fixed typos
  fixed @expectedException class names
  Fix an issue when overriding Client::setServerParameters() and using the getContainer() method in it.
  fixed some typos
  fixed @expectedException class names
  Typo and better wording for german validator translation
Merge remote-tracking branch 'symfony/master' into develop

Conflicts:
	composer.json
	src/main/php/ehough/finder/expression/Expression.php
	src/main/php/ehough/finder/shell/Command.php