Version 0.5
Add svg, svgz support

git-svn-id: https://plugins.svn.wordpress.org/mime-types-extended/trunk@776090 b8457f37-d9ea-0310-8a92-e5e31aec5664
Readme changes

git-svn-id: https://plugins.svn.wordpress.org/mime-types-extended/trunk@776095 b8457f37-d9ea-0310-8a92-e5e31aec5664