Adjust NotGonnaGitUs's PR

* move challenge test to separate file
* adjust wording of popover text
* prevent refunding gems for tavern challenges
* adjust ui of challenge creation page
* fix bug in cancel function
* adjust wording of delete confirmation message

common/locales/en/challenge.json

@@ -33,7 +33,8 @@
     "challengeTagPop": "Challenges appear on tag-lists & task-tooltips. So while you'll want a descriptive title above, you'll also need a 'short name'. Eg, 'Lose 10 pounds in 3 months' might become '-10lb' (Click for more info).",
     "challengeDescr": "Description",
     "prize": "Prize",
-    "prizePop": "If someone can 'win' your challenge, you can optionally award that winner a Gem prize. Max = #gems you own (+ guild.gems, if you created this challenge's guild). Note: This prize can't be changed later and will not be refunded if challenge is cancelled.",
+    "prizePop": "If someone can 'win' your challenge, you can optionally award that winner a Gem prize. Max = #gems you own (+ guild.gems, if you created this challenge's guild). Note: This prize can't be changed later.",
+    "prizePopTavern": "If someone can 'win' your challenge, you can optionally award that winner a Gem prize. Max = #gems you own (+ guild.gems, if you created this challenge's guild). Note: This prize can't be changed later and Tavern challenges will not be refunded if the challenge is cancelled.",
     "publicChallenges": "Minimum 1 Gem for <strong> public challenges </strong> (helps prevent spam, it really does).",
     "officialChallenge": "Official HabitRPG Challenge",
     "by": "by",
@@ -43,6 +44,7 @@
     "selectGroup": "Please select group",
     "challengeCreated": "Challenge created",
     "sureDelCha": "Delete challenge, are you sure?",
+    "sureDelChaTavern": "Delete challenge, are you sure? Your gems will not be refunded.",
     "removeTasks": "Remove Tasks",
     "keepTasks": "Keep Tasks",
     "closeCha": "Close challenge and...",