bug fix for smart collection size limit... 0 shouldn't mean 0 resources allowed

git-svn-id: http://svn.resourcespace.org/svn/resourcespace@4438 c08608d7-6e46-0410-86ca-f2a6f1370df5
Fix for download link causing blank screen in IE and for upload_preview not working for .jpeg extension


git-svn-id: http://svn.resourcespace.org/svn/resourcespace@4439 c08608d7-6e46-0410-86ca-f2a6f1370df5
Initial commit
Merge branch 'master' of github.com:rzamana/resourcespace