Remove weDevs Settings API wrapper class. Use WordPress Settings API directly.

git-svn-id: https://plugins.svn.wordpress.org/unsortable-meta-box/trunk@865249 b8457f37-d9ea-0310-8a92-e5e31aec5664
tagging version 0.8.0

git-svn-id: https://plugins.svn.wordpress.org/unsortable-meta-box/trunk@865250 b8457f37-d9ea-0310-8a92-e5e31aec5664