Fallback for old castlecss-core

Of course you should have the latest version of the core, this makes sure you have all the necessary variables.

Don't have the latest version yet? Don't worry! With v1.0.1 of castlecss-notifications we now include a variables.scss file with !default flags so your Grunt/Gulp/Webpack doesn't break when compiling your SCSS!

Neutral colors and warning

Neutral and warning color

• New notification / alert colors. Also added a warning color. Upgrade both your core and notification module to the last version to see these changes.