Lossless-ly optimize JPG image

Ran "jpegoptim --strip-all" on the image.

Size went from 28142 bytes to 11433 bytes (59% reduction).
Lossless-ly optimize GIF image

Ran "gifsicle -O2 -b" on the image.

Size went from 3996 bytes to 2960 bytes (26% reduction).
Lossless-ly optimize PNG images

Ran the following on these images:

- pngcrush -q -rem gAMA -rem alla -rem text
- optipng -o9 -q
- advpng -z -4 -q

Sizes went from:

- 6153 bytes to 2077 bytes (66% reduction)
- 6413 bytes to 2216 bytes (65% reduction)
- 1789 bytes to  643 bytes (64% reduction)
- 7383 bytes to 3423 bytes (54% reduction)
- 4765 bytes to 1555 bytes (67% reduction)
- 5197 bytes to 1730 bytes (67% reduction)
- 4765 bytes to 1555 bytes (67% reduction)
don't show GuildGems on the party tab
feat(readme): dependencies badge
chore(user): tiny cleanup in findTask function
Don't display chart if history is empty.
Use explicit get for 'quest'

Quest is currently set to null when quests end. Mongoose wraps the value
in an object so the test will fail.
Pets are set to 5 not true.
Fetch each member to get correct data

_group.members is an array of IDs not the user objects.  Fetch each one
to test.
split hairstyles into Base (free) and Set 1 (gems) https://github.com/HabitRPG/habitrpg/issues/1529
display avatar with closed eyes when sleeping

Display the sleeping version, when users are in the inn.

CAUTION: For this to work, this pull request will have to be merged first: https://github.com/HabitRPG/habitrpg-shared/pull/269
Otherwise the _sleep images are missing. ;)
feat(backgrounds): move backgrounds to mixin
refactor(filter.styl): move clearfix to global modules

Make clearfix css globally available as an @extend.
bailey(mobile): update on mobile fix
fix(bailey): tweak
fix(avatar.jade): change .notBackground to .noBackgroundImage

avatar.jade was applying a class of .notBackground, but the css in
avatar.styl used .noBackgroundImage.

* Changed .notBackground to .noBackgroundImage in avatar.jade and
avatar.styl
* Consolidated css and added more comments
* Amended spacing as Stylus wasn’t compiling correctly
* Removed #profileStable and .pet css as couldn’t find reference to
them anywhere else.
* Commented out styles indicating who is party leader for now. Need a
solution that doesn’t involve background color.
Merge pull request #3841 from Alys/defaultAvatar

split hairstyles into Base (free) and Set 1 (gems) fixes https://github.com/HabitRPG/habitrpg/issues/1529
Merge pull request #3837 from vIiRuS/patch-4

display avatar with closed eyes when sleeping
Add docker file