Lock dependencies versions

composer.json-dist

@@ -18,19 +18,19 @@
     ],
     "require": {
         "php": ">=5.3.7",
-        "roundcube/plugin-installer": ">=0.1.5",
-        "pear-pear.php.net/auth_sasl": ">=1.0.6",
-        "pear-pear.php.net/net_idna2": ">=0.1.1",
-        "pear-pear.php.net/net_sieve": ">=1.3.2",
-        "pear-pear.php.net/mail_mime": ">=1.9.0",
-        "pear-pear.php.net/net_smtp": ">=1.6.3"
+        "roundcube/plugin-installer": "~0.1",
+        "pear-pear.php.net/auth_sasl": "~1.0",
+        "pear-pear.php.net/net_idna2": "~0.1",
+        "pear-pear.php.net/net_sieve": "~1.3",
+        "pear-pear.php.net/mail_mime": "~1.9",
+        "pear-pear.php.net/net_smtp": "~1.6"
     },
     "require-dev": {
         "pear-pear.php.net/crypt_gpg": "*",
         "phpunit/phpunit": "*"
     },
     "suggest": {
-        "pear-pear.php.net/net_ldap2": ">=2.0.12 required for connecting to LDAP address books",
+        "pear-pear.php.net/net_ldap2": "~2.1 required for connecting to LDAP address books",
         "kolab/Net_LDAP3": "dev-master required for connecting to LDAP address books"
     },
     "minimum-stability": "dev"