Expected League\CLImate\string, got string for PHP 5.6

[rvalitov]

I had to close the previous pull request #134 and reopen it here.

I use the latest PhpStorm 2018.2.5 and when I use Code Inspection, I see the following warning message for most methods (e.g. inline, out, etc.):

Expected League\CLImate\string, got string. 
Invocation parameter types are not compatible with declared.

Screenshot:

This problem happens when I set PhpStorm in PHP 5.6 compatibility mode, because we can not use scalar type hint in PHP < 7.0, therefore should remove the string in declarations. According to the composer file your project is PHP 5.6 compatible, therefore such modification is eligible.

I searched the Internet for similar problems. It happened for other projects, too, for example in Yii2. And it was solved by a similar commit.

[duncan3dc]

Hi @rvalitov, thanks for your contribution but unfortunately as support for PHP 5.6 has ended we will not be releasing any more versions of CLImate for it. The next version will require a currently supported version of PHP (7.1+)

[rvalitov]

@duncan3dc Thank you for dropping the 5.6 support from the composer.json. Without that it was very confusing and that's why I had to make this PR!