Simplify ServerStarted

Startup time isn't really useful.
Craftbukkit 1.7.2 Support
Remove redundant /save-all from shutdown plugin

Saves automatically upon shutdown, no need to do it twice.
Have the server output expression be more specific

Fixes issue with saving and alerts
Thanks zifnab
Console support for 1.6 and 1.7, vanilla and bukkit (+descendents)
added the abillity to download certain vanilla version