Change current command.stub to use new 'signature' of Laravel 5

[trepatudo]

Modify stub of command generator to use new 'signature' for Laravel 5 instead of old 'name + arguments + options'

[nWidart]

I personally prefer the old way of handling commands.

[trepatudo]

Maybe we can allow both as an option? --signature or --name

[JulienTant]

I prefer the new one 👍

[nWidart]

I like having the option to have either one of the command types. Makes everyone happy :)