Add pear modules, mail and net_smtp via composer (#93)

Add pear modules, mail and net_smtp via composer, remove php 5.6 build due to phpunit 6

lib/composer/vendor/symfony/console/Input/InputDefinition.php

@@ -36,8 +36,6 @@ class InputDefinition
     private $shortcuts;
 
     /**
-     * Constructor.
-     *
      * @param array $definition An array of InputArgument and InputOption instance
      */
     public function __construct(array $definition = array())
@@ -47,8 +45,6 @@ class InputDefinition
 
     /**
      * Sets the definition of the input.
-     *
-     * @param array $definition The definition array
      */
     public function setDefinition(array $definition)
     {
@@ -95,10 +91,6 @@ class InputDefinition
     }
 
     /**
-     * Adds an InputArgument object.
-     *
-     * @param InputArgument $argument An InputArgument object
-     *
      * @throws LogicException When incorrect argument is given
      */
     public function addArgument(InputArgument $argument)
@@ -232,10 +224,6 @@ class InputDefinition
     }
 
     /**
-     * Adds an InputOption object.
-     *
-     * @param InputOption $option An InputOption object
-     *
      * @throws LogicException When option given already exist
      */
     public function addOption(InputOption $option)
@@ -318,7 +306,7 @@ class InputDefinition
     /**
      * Gets an InputOption by shortcut.
      *
-     * @param string $shortcut the Shortcut name
+     * @param string $shortcut The Shortcut name
      *
      * @return InputOption An InputOption object
      */