Uploading .ggpkg files with ( ) in the filename causes them not to be decompressed <img width="1270" alt="brackets-in-path-error" src="https://user-images.githubusercontent.com/91365/44397347-f65eea80-a537-11e8-9380-86ae1f0e31ad.png">
Uploading .ggpkg files with ( ) in the filename causes them not to be decompressed