Put Solarized Theme CSS code in elegant CSS

Fix #55
CSS Style Guide: Add a space after comma

Update #43
CSS Style Guide: Font name should start with a capital letter

Update #43
Change Mailchimp CSS code to conform to decided Style guidelines
Use three digit hex code for color whenever possible
Conform Tipue Search CSS code to style guidelines
Put tipue search CSS code in Elegant
Do not load fonts from Google Font API

This way we reduce one more HTTP request
Add helper CSS classes for floating images in article
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