fix docs

Author: AmraniCh

docs/FtpConnectionInterface.md

@@ -1,6 +1,8 @@
 ## FtpConnectionInterface
 
-`FtpConnectionInterface` provides an easy way to manipulate an FTP connection instance, however you can use this too types of connections :
+`FtpConnectionInterface` provides an easy way to manipulate an FTP connection instance.
+
+You can use the following classes that implement the interface.
 
  * `FtpConnection`    : Regular FTP connection (Not secure). 
  * `FtpSSLConnection` : FTP over TLS/SSL connection (Secure).
@@ -22,9 +24,9 @@ $connection->getStream();
 $connection->getHost();
 $connection->getPort();
 $connection->getTimeout();
-$connection->getTimeout();
 $connection->getUsername();
 $connection->getPassword();
 $connection->isSecure();
 $connection->isConnected();
+$connection->isPassive();
 ```

docs/tests.md

@@ -4,8 +4,8 @@ This library uses PHPUnit for testing.
 
 ### Requirements
 
-* phpUnit 4.x.x
-* php >= 5.6
+* phpUnit ^4
+* php >= 5.3.3
 
 ### Install