Merge pull request #191 from dgileadi/2.x

Added the ability to load SVG images from relative paths.
FIXED: bug in use of NSURL. Modified License file
FIXED: removed confusing and incorrect SVGImage define
ADDED: Can load SVG files from NSData sources, with working URL relative links.
ADDED: SVG-image tag can point to local or remote SVG files (based on an idea by trilogysci)
Merge branch '2.x' into clip-path

* 2.x:
  ADDED: Can load SVG files from NSData sources, with working URL relative links. ADDED: SVG-image tag can point to local or remote SVG files (based on an idea by trilogysci)
  FIXED: removed confusing and incorrect SVGImage define
  FIXED: bug in use of NSURL. Modified License file