Suffix interfaces with "Interface"

This is what is specified.
Fixes #8

Author: greg0ire

src/ContainerException.php renamed to src/ContainerExceptionInterface.php

@@ -8,6 +8,6 @@
 /**
  * Base interface representing a generic exception in a container.
  */
-interface ContainerException
+interface ContainerExceptionInterface
 {
 }

src/ContainerInterface.php

@@ -15,8 +15,8 @@ interface ContainerInterface
      *
      * @param string $id Identifier of the entry to look for.
      *
-     * @throws NotFoundException  No entry was found for this identifier.
-     * @throws ContainerException Error while retrieving the entry.
+     * @throws NotFoundExceptionInterface  No entry was found for this identifier.
+     * @throws ContainerExceptionInterface Error while retrieving the entry.
      *
      * @return mixed Entry.
      */
@@ -27,7 +27,7 @@ public function get($id);
      * Returns false otherwise.
      * 
      * `has($id)` returning true does not mean that `get($id)` will not throw an exception.
-     * It does however mean that `get($id)` will not throw a `NotFoundException`.
+     * It does however mean that `get($id)` will not throw a `NotFoundExceptionInterface`.
      *
      * @param string $id Identifier of the entry to look for.
      *

src/NotFoundException.php renamed to src/NotFoundExceptionInterface.php

@@ -8,6 +8,6 @@
 /**
  * No entry was found in the container.
  */
-interface NotFoundException extends ContainerException
+interface NotFoundExceptionInterface extends ContainerExceptionInterface
 {
 }