Moved the webdriver to a namespace (see issue php-webdriver#169 on the original repo)

Author: Janos Pasztor

example.php

@@ -1,6 +1,8 @@
 <?php
 // An example of using php-webdriver.
 
+namespace Selenium\WebDriver;
+
 require_once('lib/__init__.php');
 
 // start Firefox with 5 second timeout

lib/JavaScriptExecutor.php

@@ -13,6 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+namespace Selenium\WebDriver;
+
 /**
  * WebDriver interface implemented by drivers that support JavaScript.
  */

lib/WebDriver.php

@@ -13,6 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+namespace Selenium\WebDriver;
+
 /**
  * The interface for WebDriver.
  */

lib/WebDriverAction.php

@@ -13,6 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+namespace Selenium\WebDriver;
+
 /**
  * Interface representing a single user-interaction action.
  */

lib/WebDriverAlert.php

@@ -13,6 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+namespace Selenium\WebDriver;
+
 /**
  * An abstraction allowing the driver to manipulate the javascript alerts
  */

lib/WebDriverBy.php

@@ -13,6 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+namespace Selenium\WebDriver;
+
 /**
  * The basic 8 mechanisms supported by webdriver to locate a web element.
  * ie. 'class name', 'css selector', 'id', 'name', 'link text',

lib/WebDriverCapabilities.php

@@ -13,6 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+namespace Selenium\WebDriver;
+
 interface WebDriverCapabilities {
 
   /**

lib/WebDriverCommandExecutor.php

@@ -13,6 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+namespace Selenium\WebDriver;
+
 /**
  * Interface for all command executor.
  */

lib/WebDriverDimension.php

@@ -13,6 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+namespace Selenium\WebDriver;
+
 /**
  * Represent a dimension.
  */

lib/WebDriverDispatcher.php

@@ -13,6 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+namespace Selenium\WebDriver;
+
 class WebDriverDispatcher {
 
   /**