Fixes homepage scripts and in turn fixes css rendering

[ryankeairns]

After deploying the blog, we noticed that the home page styles weren't rendering correctly and there was a javascript error.

After digging into it, the issue was related to an issue with how javascript files are dynamically included in middlemanapp via middlemanapp-sprockets. Researching indicated that if you point at a newer version of middleman-sprockets that the javascript require functionality would work again... and so it did.

The only side effect was that it no longer could handle the radial gradient backgrounds that we were using on the home page, so I had to make some very minor tweaks to those css rules (removing an unrecognizable parameter).

Signed-off-by: Ryan Keairns rkeairns@chef.io

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[ryankeairns]

Notes for a future-proof fix:

https://forum.middlemanapp.com/t/how-to-add-javascripts-in-middleman-4/2689

Sprockets was removed from middleman core, to fix this we could continue using sprockets by:

• set to the last version gem 'middleman-sprockets', '~> 4.1.0' and activate it manually it in our config.rb with activate :sprockets
  or, better yet
• use an external js build tool like webpack to handle our js bundling