Adding Properties Tweaks

• Height Atom
• Flex Atom - Adding Inline Flex option
• Background Atom - Adding Repeat option
  ... and few other helpful tweaks.

All credits to @petsto

Fix bugs

Add missing .none atom in Less and Stylus versions.

New atoms

What's new:

• New atoms
  • text-align
  • text-decoration
  • clearfix
• Bug fixes