updating getimagesize to use dir not url

git-svn-id: https://plugins.svn.wordpress.org/slideshow-satellite/branches/2.3@1055844 b8457f37-d9ea-0310-8a92-e5e31aec5664
final imagesize cleanup

git-svn-id: https://plugins.svn.wordpress.org/slideshow-satellite/branches/2.3@1055851 b8457f37-d9ea-0310-8a92-e5e31aec5664
fixing premium multigallery issue

git-svn-id: https://plugins.svn.wordpress.org/slideshow-satellite/branches/2.3@1055873 b8457f37-d9ea-0310-8a92-e5e31aec5664
fixing version number 2.3.2

git-svn-id: https://plugins.svn.wordpress.org/slideshow-satellite/branches/2.3@1055875 b8457f37-d9ea-0310-8a92-e5e31aec5664
Big fixes for 2.3 satellite

git-svn-id: https://plugins.svn.wordpress.org/slideshow-satellite/trunk@1055877 b8457f37-d9ea-0310-8a92-e5e31aec5664