Changes to keymaster as hotkey js lib. Fixes some (not all) of the hotkeys issues.
Removes the alt+w hotkey, dialogs can be closed with esc key.
Do not initialize Alchemy.Hotkeys after building elements and preview windows.

Events for Turbolinks page:update already handles this.
Changes link to latest RubyGems version.
Fixes creating of EssencePictures that are not inside of a picture gallery.

Cherry picked from 2.7-stable
Set add_new_content link to full width.
Ensures that essence#description always returns a Hash.

Cherry picked from 2.7-stable.
Adds spring app preloader to gem test and dev group.
Uses icon font for all icons, new colors and new interface design.
Fixes page status and resources tolls icons.
Re-enables fading of growl messages.
Fixes icon css selectors.
Adds media queries for tables and left menu.
Refactors Admin::PagesController#create for better readability

Same behavior as before, just code cleanup.
Updates to latest version of non-stupid-digest-assets

NOTE: Since the new version is released on rubygems, please make sure that you have the gem in your Gemfile:

gem 'non-stupid-digest-assets', github: 'alexspeller/non-stupid-digest-assets', branch: 'master'
Updates installation instructions for Alchemy v3.0 [ci skip]
Adjust main navi tab positions.
Use normal iFrame instead of jQueryUI dialog for page preview.
Removes jquery ui icon classes.
Converts element window from dialog into a normal div.