AliasPro

fixed so that commands not listing arguments (or less than given) are executed with the extra args at the end
fixed adding commands with spaces from /cadd (adding quotes kept quotes there)
changed the command syntax to more logical (/cadd [alias] [command]), alias can be put in quotes (but assuming not done often) and command doesn't need quotes to add spaces
changed permission nodes(and added another) -now there's "alias.admin" for managing server-wide aliases, and "alias.use" for users to be able to define personal aliases
general code cleanup (generalized reused code so it's instead used once)