Remove Optimizations Options

• Remove optimize and svgoConfig options, since svgo won't be packed inside this module.
• Show how easy is to use svgo as an external dependency

Results in:

svgson-next version	minified	gzipped
3.0.4	736.7kB	202kB
4.0.0	31.1kB	9.8kB

Next bundle size optimizations:

• remove compat

v2.0.0

<a name"2.0.0">

2.0.0 (2017-03-03)

Breaking Changes

• closes #1

closes #1

(7fc3cb72)

Initial Release

Copy library from svgson