feat(jshint): add initial config

This initial config mostly documents existing code style
by relaxing multiple options that are turned on by default.
Hide task control buttons during editing
API rejects spell cast if not enough mana

Fix #3493 “API does not validate if user has enough mana”
Update spell cast test to ensure user has mana
Update API Parameter documentation for Equip call

the function that is called actually expects different values than specified in the documentation.

This is related to #3525.
The API itself works, it just does no validation of the input and the documentation is wrong, which is why I used it wrong.

Having some kind of validation would probably still a good idea.
DRY up src/routes/pages.js.
chore(migrations): cleanup unused json library, added in 999669a2, not removed in cbe23f638a
Merge pull request #3554 from Gaelan/dry_routes

DRY up src/routes/pages.js.
Merge pull request #3190 from denis-sokolov/jshintrc

feat(jshint): add initial config
Merge pull request #3540 from vIiRuS/patch-1

Update API Parameter documentation for Equip call
Add Bountysource badge to README

Because you have some open bounties, we thought you might want to display this badge in your README!
refactor(.hero-stats): restyle status meters

Add text to icons to clarify purpose of each bar
Tidy up tooltip behaviour
Aesthetic changes
refactor(avatar.styl): add text shadow to lvl label
refactor(filters.styl): minor layout changes
chore(bailey): june mystery item, earthquake thingy
Merge pull request #3563 from bountysource-support/patch-1

Add Bountysource badge to README
fix(IE): Remove comment triggering quirks mode in IE, fixes #3550
Merge pull request #3535 from OverloadUT/fix-spells-mana-check

API rejects spell cast if not enough mana
fix(i18n): use strings
Only refund quest scroll to leader if quest was active

otherwise quest leader gets more quest scrolls than they had to begin with.