APPDEV-1683 -Added a "fix" for the issue being experienced in IE8 on Windows XP. Added call to "array_unique" before generating download headers to remove duplicates being returned by server.
PNW-607 -Added check for proper permissions before allowing user to download files. -Conditional rendering of 'get file' button based on permissions -Graceful handling of submit in case of file download fail...should never get used as the button is never rendered for users without proper permissions.