Better work on dates, filters, and exports and bug fixes for noedit_columns

git-svn-id: https://plugins.svn.wordpress.org/wp-db-table-editor/trunk@1003428 b8457f37-d9ea-0310-8a92-e5e31aec5664
bumped version

git-svn-id: https://plugins.svn.wordpress.org/wp-db-table-editor/trunk@1003430 b8457f37-d9ea-0310-8a92-e5e31aec5664