fix a js error when viewing events and clean up some double slashes

git-svn-id: https://plugins.svn.wordpress.org/events-made-easy/trunk@993960 b8457f37-d9ea-0310-8a92-e5e31aec5664
release 1.5.5

git-svn-id: https://plugins.svn.wordpress.org/events-made-easy/trunk@993962 b8457f37-d9ea-0310-8a92-e5e31aec5664