Over the rainbow

• New Image component.
• New Link component.
• Improved button and input styling.
• Improved color system for more consistency and balance.
• Massive audit and refactor of all files containing color.
• Fixed all compilation warnings.
• New interactive prop on Avatar component.
• Status component now supports counters (notifications etc.).
• New negative margin utility classes.
• Docs for all spacing utility classes.
• Removed some redundant CSS resulting in a lighter compiled file.
• Various bug-fixes and performance improvements throughout CSS, showcase and docs.