minor #4909 Remove horizontal scrollbar and other fixes (ifdattic)

This PR was merged into the 2.3 branch.

Discussion
----------

Remove horizontal scrollbar and other fixes

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3
| Fixed tickets |

Commits
-------

11422db Update using_components.rst
9c1c071 Update using_components.rst
2e5c054 Remove horizontal scrollbar, fix command with version
759ad10 Remove horizontal scrollbar
d47f5f7 Remove horizontal scrollbar

components/using_components.rst

@@ -36,12 +36,6 @@ whatever component you want.
     file in your directory. In that case, no worries! Just run
     ``php composer.phar require symfony/finder``.
 
-If you know you need a specific version of the library, add that to the command:
-
-.. code-block:: bash
-
-    $ composer require symfony/finder
-
 **3.** Write your code!
 
 Once Composer has downloaded the component(s), all you need to do is include
@@ -51,7 +45,8 @@ immediately::
 
     // File example: src/script.php
 
-    // update this to the path to the "vendor/" directory, relative to this file
+    // update this to the path to the "vendor/"
+    // directory, relative to this file
     require_once __DIR__.'/../vendor/autoload.php';
 
     use Symfony\Component\Finder\Finder;

cookbook/testing/database.rst

@@ -48,7 +48,8 @@ Suppose the class you want to test looks like this::
 
         public function calculateTotalSalary($id)
         {
-            $employeeRepository = $this->entityManager->getRepository('AppBundle::Employee');
+            $employeeRepository = $this->entityManager
+                ->getRepository('AppBundle::Employee');
             $employee = $employeeRepository->find($id);
 
             return $employee->getSalary() + $employee->getBonus();
@@ -74,15 +75,17 @@ it's easy to pass a mock object within a test::
                 ->will($this->returnValue(1100));
 
             // Now, mock the repository so it returns the mock of the employee
-            $employeeRepository = $this->getMockBuilder('\Doctrine\ORM\EntityRepository')
+            $employeeRepository = $this
+                ->getMockBuilder('\Doctrine\ORM\EntityRepository')
                 ->disableOriginalConstructor()
                 ->getMock();
             $employeeRepository->expects($this->once())
                 ->method('find')
                 ->will($this->returnValue($employee));
 
             // Last, mock the EntityManager to return the mock of the repository
-            $entityManager = $this->getMockBuilder('\Doctrine\Common\Persistence\ObjectManager')
+            $entityManager = $this
+                ->getMockBuilder('\Doctrine\Common\Persistence\ObjectManager')
                 ->disableOriginalConstructor()
                 ->getMock();
             $entityManager->expects($this->once())

cookbook/testing/profiling.rst

@@ -21,7 +21,8 @@ the ``test`` environment)::
         {
             $client = static::createClient();
 
-            // Enable the profiler for the next request (it does nothing if the profiler is not available)
+            // Enable the profiler for the next request
+            // (it does nothing if the profiler is not available)
             $client->enableProfiler();
 
             $crawler = $client->request('GET', '/hello/Fabien');