Bug with timber v1

[ninogal]

Hi, I noticed that this bug occurs when using the plugin with Timber v1.

in clear-cache-for-timber.php

function clear_cache_for_timber_clear_cache() {
    if (class_exists('Timber\Cache\Cleaner')) {
        return Timber\Cache\Cleaner::clear_cache_twig();
    }
    else if (class_exists('Timber\\Integrations\\Command')) {
        return \Timber\Integrations\Command::clear_cache();
    }
    else {
        return TimberCommand::clear_cache();
    }
}

Basically, the first check you do doesn't work because it can't find the clear_cache_twig() method and results in a 500 error. To quickly fix it, I swapped the first two if statements, but I'm sure there's a better way to fix it!

[ninogal]

I solved the problem with a simple check on the method, if you want to integrate I opened a pull request :)