Bump Net_LDAP2 version to 2.2.0 for PHP7 compatibility (#5171)

Aleksander Machniak

2016-03-29 3193a5e5d28a33f507b7eef6ba7df932ca149007

 composer.json-dist

@@ -35,7 +35,7 @@
        "phpunit/phpunit": "*"
    },
    "suggest": {
        "pear-pear.php.net/net_ldap2": "~2.1.0 required for connecting to LDAP address books",
        "pear-pear.php.net/net_ldap2": "~2.2.0 required for connecting to LDAP address books",
        "kolab/Net_LDAP3": "dev-master required for connecting to LDAP address books"
    },
    "minimum-stability": "dev"