add lastDrop to helpers.newUser
make cron tests locale aware (first day of the week)
Update spritesheets.css
Update backer.css
challenges: remove derby stuff
Add contributor weapon and shield
Merge branch 'rewrite' of https://github.com/Shaners/habitrpg-shared into rewrite
Add contributor shop sprites.
Merge branch 'challenges'
Merge remote-tracking branch 'shaners/rewrite'

Conflicts:
	dist/spritesheets.css
Add golden paw graphic for missing but obtainable rare pets.
Merge pull request #36 from Shaners/rewrite

Add golden paw graphic for missing but obtainable rare pets.
upgrade lodash to 2.2.x
revert lodash version
show how to run tests in readme
[#1708] tmp workaround for task not defined
remove workaround
add task._id = task.id on taskDefaults
grunt for task defaults issue
upgrade lodash to 2.2.1