Merge branch '5.1' into 5.2

* 5.1:
  Fix licence
  Fix CS in link binary
  [Cache] remove no-op
  Fix CS in Changelogs
  [Notifier][Sinch] Add tests
  [Notifier] [Nexmo] Add tests
  [Notifier][OvhCloud] Add tests
  [Notifier] [Free Mobile] Rename method to match other bridges
  [Cache] fix setting "read_timeout" when using Redis
  Fix CS in changelogs
  [Notifier] Streamline README files

Author: derrabus

CHANGELOG.md

@@ -83,9 +83,9 @@ CHANGELOG
  * `OutputFormatter` throws an exception when unknown options are used
  * removed `QuestionHelper::setInputStream()/getInputStream()`
  * removed `Application::getTerminalWidth()/getTerminalHeight()` and
-  `Application::setTerminalDimensions()/getTerminalDimensions()`
-* removed `ConsoleExceptionEvent`
-* removed `ConsoleEvents::EXCEPTION`
+   `Application::setTerminalDimensions()/getTerminalDimensions()`
+ * removed `ConsoleExceptionEvent`
+ * removed `ConsoleEvents::EXCEPTION`
 
 3.4.0
 -----
@@ -102,23 +102,23 @@ CHANGELOG
 3.3.0
 -----
 
-* added `ExceptionListener`
-* added `AddConsoleCommandPass` (originally in FrameworkBundle)
-* [BC BREAK] `Input::getOption()` no longer returns the default value for options
-  with value optional explicitly passed empty
-* added console.error event to catch exceptions thrown by other listeners
-* deprecated console.exception event in favor of console.error
-* added ability to handle `CommandNotFoundException` through the
- `console.error` event
-* deprecated default validation in `SymfonyQuestionHelper::ask`
+ * added `ExceptionListener`
+ * added `AddConsoleCommandPass` (originally in FrameworkBundle)
+ * [BC BREAK] `Input::getOption()` no longer returns the default value for options
+   with value optional explicitly passed empty
+ * added console.error event to catch exceptions thrown by other listeners
+ * deprecated console.exception event in favor of console.error
+ * added ability to handle `CommandNotFoundException` through the
+   `console.error` event
+ * deprecated default validation in `SymfonyQuestionHelper::ask`
 
 3.2.0
 ------
 
-* added `setInputs()` method to CommandTester for ease testing of commands expecting inputs
-* added `setStream()` and `getStream()` methods to Input (implement StreamableInputInterface)
-* added StreamableInputInterface
-* added LockableTrait
+ * added `setInputs()` method to CommandTester for ease testing of commands expecting inputs
+ * added `setStream()` and `getStream()` methods to Input (implement StreamableInputInterface)
+ * added StreamableInputInterface
+ * added LockableTrait
 
 3.1.0
 -----