Keep reporting bugs and suggesting features so I can make this plugin better ! The plugins that are not in the below list didn't change.
Changelog for QuestCreator 1.1.4 :
Added a debug message to help identifying an error in the QuestCreatorGUI
Added an option in the quest configuration that allows you to customize the maximum completions of a quest for each player. It's settings.max_completions=1 (the player can do the quest 1 time)
Add those messages in your locale file (don't forget to put two spaces ' ' before each message) : quest_resetall=&cYou reset all your quest progression. quest_reset=&cYou reset the progression of quest $QUEST.