Federate spoiler_text using warning attribute on <content /> instead of a <category term="spoiler" />
Clean up schema file from accidental development migrations

affected, replaced onClick handler with onMouseUp/Down to detect text
selection not trigger onClick handler then

Fix #365, 1/2 of #408 - replace rails_autolink with URI.regexp, run link_hashtags on simplified_format

to sign in page after sign up instead of root path which redirects to /about

timeline reload in UI, other small fixes

as well as formatting of content