[librsvg] (15 commits) ...Merge branch 'resolved-primitive' into 'master'

[Federico Mena Quintero <federico src gnome org>]

Summary of changes:

  9ae570c... FilterContext: validate the transforms at creation time
  aeac62f... ResolvedPrimitive: now we can assume that the ctx's transfo
  04a7a1d... ResolvedPrimitive - length values are now in user space coo
  c8325c9... (#695): feImage cascading mode should be the same as for th
  f4d3b27... FilterContext: remove get_computed_values_from_node_being_f
  83f2c5d... Filter: rename a couple of fields
  4487bc2... Normalize the Filter element into a ResolvedFilter as early
  e3c054a... Remove unused arguments
  e72ac06... ResolvedPrimitive.get_bounds() doesn't need to return a Res
  8e436dd... Don't make filter primitives responsible for shipping aroun
  e233d44... Primitives now take a BoundsBuilder in their render(), not 
  8e2cf0a... BoundsBuilder - return a new Bounds value instead of (clipp
  db427bf... Merge.render() - make its arguments uniform with the rest o
  b142668... Remove superfluous clone
  3122f30... Merge branch 'resolved-primitive' into 'master'