Sync with git

git-svn-id: https://plugins.svn.wordpress.org/wp-spam-question-filter/trunk@996122 b8457f37-d9ea-0310-8a92-e5e31aec5664
Unified naming convention: main php file has plugin name

git-svn-id: https://plugins.svn.wordpress.org/wp-spam-question-filter/trunk@996124 b8457f37-d9ea-0310-8a92-e5e31aec5664