Add note to gemfile.
Update advertisement model to use modern syntax.
Fix redirect target.
Use new AR finder syntax.

--HG--
extra : amend_source : d1ae4eda6e171d4d68e48cc70ecf5f03b33dc855
Delete vote when it's set to less than or equal to 0.

And why is it even configurable.

--HG--
extra : amend_source : 9d1f3deec9c095b0d37700d66b73ea179f8616c4
Nuke all votes with score less than 1.
Update gems.
Merge from git.

--HG--
extra : amend_source : 83bce603655f5f22423791cad476c71344bf34fa
Remove weird default post_votes.updated_at.
Synchronize db's structure.sql.
Basic webm support. Possibly broken.
Misc changes.
Fix everything!
Merge branch 'master' of https://github.com/aers/moebooru

Conflicts:
	app/models/post/file_methods.rb
	app/views/post/show_partials/_image.html.erb
	lib/webm_tools.rb