fix tooltip .. again
modify report to use better code
add Spooky Skins; improve report to use node.js stream-based code
sort output alphabetically by item name; improve readable data so it is actually readable
bailey(mystery): september mystery reminder
add Enable Class System button to User -> Stats ("Stats and Achievements") page when user has opted out
Merge pull request #3965 from Alys/enableClassSystem

add Enable Class System button to User -> Stats when user has opted out
mark quest owner in quest participants box on party page (in invitation stage and after quest started)
bailey(backgrounds): september 2014 backgrounds
feat(auth): allow logging in with either username or email address
allow newly created tag to have the same UUID on client and server - fixes https://github.com/HabitRPG/habitrpg/issues/2856
Merge pull request #3970 from Alys/tags-Sep-02

allow new tag to have same UUID on client and server - fixes https://github.com/HabitRPG/habitrpg/issues/2856 , fixes https://github.com/HabitRPG/habitrpg/issues/2370
Merge pull request #3966 from Alys/questLeaderAndNotifications

mark Quest Owner in quest participants box on party page
Merge pull request #3960 from Alys/reportCountOwnedGear

count how many users own wondercon Unconventional Armor and Halloween Spooky Skins
perf(auth): exclude unecessary auth fields
stop crashing when user doesn't have expected object
Merge pull request #3972 from Alys/reportCountOwnedGear

stop database_reports/count_users_who_own_specified_gear.js crashing when user doesn't have expected object
Merge pull request #3952 from negue/tooltip_fix_part2

2nd Try to fix Avatar tooltips
Markdown for Checklist Items
Merge pull request #3984 from negue/checklist_markdown

Markdown for Checklist Items