Copy changes for plugin page from Luke

git-svn-id: http://plugins.svn.wordpress.org/polar-polls/trunk@913981 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update plugin name

git-svn-id: http://plugins.svn.wordpress.org/polar-polls/trunk@913986 b8457f37-d9ea-0310-8a92-e5e31aec5664
Initial FAQ section and initial answers.

git-svn-id: http://plugins.svn.wordpress.org/polar-polls/trunk@913991 b8457f37-d9ea-0310-8a92-e5e31aec5664
Plugin rename to "Polls by Polar"

git-svn-id: http://plugins.svn.wordpress.org/polar-polls/trunk@914041 b8457f37-d9ea-0310-8a92-e5e31aec5664