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)
Add custom css to prevent Flying Pig progress bar being hidden
Add custom css to prevent Flying Pig progress bar being hidden
Merge branch 'develop' of https://github.com/benmanley/habitrpg into develop

Conflicts:
	public/css/inventory.styl
Merge remote-tracking branch 'upstream/develop' into develop
Redesign navbar

Restyle navigation and improve mobile layout
Remove flying pig custom styles

Remove styles that haven’t been pulled into habitrpg
Change navbar background-color

Correct navbar background-color and remove some redundant styles
Change hardcoded text to variable
Move sync button from submenu into navbar
Improve navbar layout

Make navbar fixed for desktop and static for mobile.
Add herobox background colour variables
Hide toolbar-submenu until toggled
Hide .navbar-info on mobile until toggled
Remove gold and silver totals from Reward list
Close submenu when a navigation link is clicked
Fix gap at bottom of toolbar and remove unused code
Fix broken logout link in submenu