v0.4.4

• FIXED Update permissions on added files and files with unmodified content
• FIXED Fix potential Longtail_GetFilesRecursively2 buffer overrun (@webbju)
• FIXED Fix OnGetStoredBlockPutLocalComplete error code reporting (@webbju)
• FIXED Fix Longtail_Storage_OpenAppendFile prototype (@webbju)
• CHANGED Attempt to use sparse files on windows when writing out a files larger than 16 MB