[librsvg] (20 commits) ...Merge branch 'shorten-primitives' into 'master'

[Federico Mena Quintero <federico src gnome org>]

Summary of changes:

  a82d54a... filters::render() - Resolve the StrokePaint/FillPaint here,
  c3cee1f... Rename function
  f2d1975... filters: resolve() now returns the resolved Primitive as we
  006dd1a... New method to resolve Primitive early
  2d3ecf0... Derive Default for Primitive
  33c4213... feBlend: shorten code by implementing Default and Clone for
  3e3524d... feColorMatrix: shorten code by implementing Default and Clo
  601b54f... feComponentTransfer: shorten code by implementing Default a
  5776d02... feComposite: shorten code by implementing Default and Clone
  c2073a4... feConvolveMatrix: shorten code by implementing Default and 
  8ac3371... feDisplacementMap: shorten code by implementing Default and
  0b94be2... feFlood: shorten code by implementing Default for it
  b417184... feGaussianBlur: shorten code by implementing Default and Cl
  8246189... feImage: shorten code by implementing Default and Clone for
  f403630... feMorphology: shorten code by implementing Default and Clon
  bd5eded... feOffset: shorten code by implementing Default and Clone fo
  49df423... feTile: shorten code by implementing Default and Clone for 
  63a162f... feTurbulence: shorten code by implementing Default and Clon
  0503a70... fe*Lighting: shorten code by implementing Default and Clone
  9355c50... Merge branch 'shorten-primitives' into 'master'