bailey(backgrounds): new backgrounds, gaymerx
refactor(.hero-stats): re-restyle status meters

Improved status meter design based on user feedback
refactor(labels): match status meter style
refactor(avatar): restyle level label
refactor(boss): restyle boss stats meters

Update to reflect redesigned stats meters
fix(swagger): correct API docs, fix #3679
Updated Tavern Boss -> World Boss nomenclature

As discussed in the petting zoo.
fix(swagger): rollback unwanted changes
Merge branch 'develop' of https://github.com/HabitRPG/habitrpg into develop
fix(jade): fix jade warning about "missing space before text for line..."
update Vagrantfile to use my habitrpg box and with performance improvements