`Rails.application.assets` is only available when `config.assets.compile`
is true (which is false in production). So the old way with a separate
rake task doesn't work in production. But we can get the filename of the
precompiled file from `Rails.application.assets_manifest.assets`.
* snippet now in a separate JS file - compiled and uglified with the other assets
* popup gets centered in opening browser window
* publisher gets pre-filled with markdown-styled content
This allows us to reuse any CSS we have, unify
their look and unify their look with the regular
page design.
This works by instantiating ActionView and rendering
templates in a rake task.
Inspired by the errgent gem.
