transferred from Git

git-svn-id: https://plugins.svn.wordpress.org/wordquest/trunk@908806 b8457f37-d9ea-0310-8a92-e5e31aec5664
Moved screenshots to assets/ to avoid bloat when installing plugin.

git-svn-id: https://plugins.svn.wordpress.org/wordquest/trunk@908811 b8457f37-d9ea-0310-8a92-e5e31aec5664