v2.8.0 - stringifyAttributes improvements

Features:

• Minor improvements to stringifyAttributes:
  • Values of undefined are now removed from objects
  • Better whitespace

Expect snapshot changes similar to this:

 <div>
-  <my-child-stub someprop="{aaa:2,bbb:undefined,ccc:true}" />
+  <my-child-stub someprop="{ aaa: 2, ccc: true }" />
 </div>

Diff:

• v2.7.1...v2.8.0