New Features:
1) Now prevents users from using dispensers to break End Portal blocks. This can be used to respawn the end dragon with only 2 crystals or completely destroy portals. ->
Wiki Page
2) Added a user suggestion to launch items out of the end fountain when the dragon dies, before the portal spawns. This prevents items from vanishing when the portal spawns. ->
Wiki Page
3) Added support for SaberFactions gui's.. Items detected inside these gui's will not be affected by overstack/illegal enchantment protections. If for some reason players manage to find a way to get items out of this inventory they would be destroyed / fixed as per usual IllegalStack behavior.
BUGFIXES:
1) Fixed a bug that would attempt to load protocollib classes at startup if protocolib was MISSING and chested animal protection was also disabled.