Enforced Shield -> Reinforced Shield

Changed spelling
Merge pull request #1046 from SyntaxPickax/master

Spelling: Enforced Shield -> Reinforced Shield
habitrpg-shared: fix cron, so it doesn't run fully for new users
Merge branch 'master' of github.com:lefnire/habitrpg
set derby-ui-boot dependency to
f04ba2c7e7b3a8f1462a6e70fe4f81055d74c4b2 (new versions are for racer 0.5)
challenges: underscore => lodash
Merge branch 'develop' into challenges
achievements: add "Helped Habit Grow" badge, including bailey notify
Merge branch 'develop' into challenges
challenges: generalized listings for groups/parties/public
challenges: migrated drop groups collection if exists (mostly for debugging)
guilds: generic handling of invitations (incl. accept, reject, invite, etc)