v0.4

• #8 Extract DOM and CSS up to the root element (by @crdev)
• #15 Preserve settings (by @crdev)
• Fix for #7 bug where shorthand property values were sometimes invalid
• Workarounds for buggy 'content' property
• Codebase cleanup, improvements and additional comments
• Github 'star' social button added
• More attributes, that affect how element looks, allowed in HTML by the 'HTML cleanup filter' (e.g. placeholder, disabled, readonly)