Handlers types

[ashleycoles]

Some more property type hints! This time for Handlers

A few notes on the changes made to ErrorHandler:

• The method property was being accessed before init, so I've switched it to be a nullable string with a default of null
• Both the logErrorDetails and displayErrorDetails properties were being accessed before init, so I've given them both default values of false

If there is a more sensible solution for the above, please let me know!

[coveralls]

Coverage decreased (-0.0002%) to 99.892% when pulling 16af910 on ashleycoles:handlersTypes into f8f1377 on slimphp:4.x.

[dakujem]

Adding type to a base class causes fatal when child classes are not updated accordingly.

Compile Error: Type of MyErrorHandler::$errorRenderers must be array (as in class Slim\Handlers\ErrorHandler)

Should this not have been a major version bump? @l0gicgate
Maybe not - a protected property is not public interface. I just wanted to point out however, it might have been communicated in the release notes or similar, since I see many other places the types have been added in 4.11 release. But don't get me wrong - I'm glad you are adding the types.