* Fix: Reset negative quest scrolls number to zero on purchase(gem)
* Refactor: rename website/common/script/ops/buy/buyQuest.js to website/common/script/ops/buy/buyQuestGold.js and update related files
* Test: add two tests related to negative quest scrolls
* wip: define items as mixed objects
* add default owned gear
* mark modified
* more mark modified
* more mark modified
* more mark modified
* more mark modified
* fix common tests
* fix common tests
* update mongoose
* add itemsUtils
* use new util function in hall controller
* add tests for items utils
* update website/server to mark all items as modified
* start updating common code
* update login incentives
* update unlock
* remove changes to package-lock.json
* remove changes to package.json
* WIP(analytics): add / improve tracking
* fix(groups): revert attempt at tracking on group model
* fix(analytics): track questing based on user data
* each buy-operation now has a getItemType method - typo getItemKey - removed unneeded overrides