Support for dashes in command names (as was possible in Aloe)

[patrickvuarnoz]

Aloe supported dashes in commands, something like auto-create-reports. Sprout does not support that anymore because of the regexp used to parse the commands.

/src/Sprout/App.php, line 344:

if (!preg_match('/^([\w:]+)(.*?)((?:\{\s*--.*\})+)?$/s', $signature, $matches)) {
    return null;
}

If changed to this it will also support dashes:

if (!preg_match('/^([\w:-]+)(.*?)((?:\{\s*--.*\})+)?$/s', $signature, $matches)) {
    return null;
}