merged branch jmontoyaa/master (PR #680)

This PR was squashed before being merged into the master branch (closes #680).

Discussion
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Adding "port" option in DoctrineServiceProvider

In doctrine.rst and DoctrineServiceProvider.php

Commits
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a140a694 Adding "port" option in DoctrineServiceProvider

doc/providers/doctrine.rst

@@ -29,12 +29,15 @@ Parameters
 
   * **password**: The password of the database to connect to.
 
-  * **charset**: Only relevant for ``pdo_mysql``, ``pdo_oci`` and ``oci8``,
+  * **charset**: Only relevant for ``pdo_mysql``, and ``pdo_oci/oci8``,
     specifies the charset used when connecting to the database.
 
   * **path**: Only relevant for ``pdo_sqlite``, specifies the path to
     the SQLite database.
 
+  * **port**: Only relevant for ``pdo_mysql``, ``pdo_pgsql``, and ``pdo_oci/oci8``,
+    specifies the port of the database to connect to.
+
   These and additional options are described in detail in the `Doctrine DBAL
   configuration documentation <http://docs.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/configuration.html>`_.
 

src/Silex/Provider/DoctrineServiceProvider.php

@@ -33,6 +33,7 @@ class DoctrineServiceProvider implements ServiceProviderInterface
             'host'     => 'localhost',
             'user'     => 'root',
             'password' => null,
+            'port'     => null,
         );
 
         $app['dbs.options.initializer'] = $app->protect(function () use ($app) {