Spigot 1.13 has a compatabilty layer for old bukkit names, this will allow you to take advantage of that.
1.12: `bukkit:grass` -> `minecraft:grass`
1.13: `bukkit:grass` -> `minecraft:grass_block`
1.13: `grass` -> `minecraft:grass`
These are optional changes to SubCreator's Scripts that are intended to improve compatability. To get these changes, remove your Templates folder for it to be regenerated upon startup.
All builds of commonly updated SubServers apps are now auto-signed with a unique Snapshot ID simalar to the ones Mojang uses. This will replace the beta version number for unreleased builds.
The last three commits were changes to the way Vanilla-Patch.jar is downloaded. For compatability reasons, the old system will remain in place for now.