Fixed changing user browsing settings
Changed pagers to use own spinners; improved looks
Fixed endless scroll loading next page too eagerly
Added post view placeholder
Fixed youtube thumbnails
Added "..." when needed in paginator
Fixed colors of "big button" links
Fixed saving tags under certain circumstances
Added post mime type saving
Added TODO
Added "P" hotkey to post list
Fixed tag input not adding current tag on blur
Fixed unable to click checkboxes in post upload
Fixed clickable rows while upload is ongoing
Fixed thumbnails for non-images in post upload
Added CSS rules to selected post
Changed file mgmt to use entities' lazy getters
Changed mime detection to be case insensitive
Refactored thumbnail system
Tweaked CSS rules related to vendor stylesheets