Incorporate shadow into list of properties, and reorganize property names
Add ability to change shadow opacity
Add shadow blur
Clean up variable names
Fix incorrect shadow blur when the background is transparent
Clean up some comments
Fix negative margins
Include all properties in cache calculation
Fix incorrect margins when used in combination with blur
Add some comments
Use different hash signature to distinguish cache entries from old those produced by older versions
Update example to use new features
Version up to 0.2
Update README to match new features
Fix formatting in README
Fix incorrect Markdown syntax in README
Further additions to the documentation