Changed textdomain to plugin slug for compatibility with WP core language packs. Added .pot translation file. Updated plugin URI. Use singleton class. Tested and passed for WP 4.0 compatibility.

git-svn-id: https://plugins.svn.wordpress.org/increase-upload-max-filesize/trunk@957652 b8457f37-d9ea-0310-8a92-e5e31aec5664