ts-style 0.2 - inline styles, style precedence controls and make CSS consistent with React

 * Make the array of styles passed to style.mixin() ordered in ascending
   precedence. The returned object uses inline styles via the 'style' property
   where necessary to ensure that properties from higher-precedence styles
   take priority over lower-precedence ones.

 * Avoid suffixing non-length properties with 'px' units, matching
   React's processing of inline styles.

 * Support passing plain objects to style.mixin() as well as
   objects created by style.create().

   Plain objects are translated to inline styles