feat(attributes): Add backfill button in flat and classbased allocation modes
i18n(subscriber): replace subscriber hard-coded strings for env.t
fix(purchase) add a check for user.balance
chore(grunt):
Merge branch 'sabe/attributes' into develop

Conflicts:
	dist/habitrpg-shared.js
	locales/en/main.json
Merge pull request #121 from Sinza-/split-main-json

i18n(subscriber): replace subscriber hard-coded strings for env.t
i18n(interpolation): Add string interpolation
Add buyQuest to quests.json
i18n(merge): merge @Sinza- changes & rebuild
i18n(fix): change a name and add two strings back
chore(logging): remove console logging
feat(habitBirthday): add habitrpg birthday event. includes cakes for all
pets, absurd party robes, npc swap, badge, etc. @lemoness
fix(tests): put honey last in food items def, seems to fix the mocked
random function looking for honey. @djuretic any ideas?
fix(pets): 401 error when can't hatch a pet, not 500
fix(errors): ooo, and some other stray unecessary 500s