Handle non-ascii filenames in zip files
Handle non-ascii filenames in zip files

zip files are opened in binary mode and rubyzip makes no attempt to
detect and tag filenames, so any non-ascii filename is labeled
as ASCII_8BIT encoding and cannot be used as a string. Detect
utf-8 or convert from single-byte Windows-1252, as appropriate.

autolab/Autolab,cg2v/Autolab,cg2v/Autolab,autolab/Autolab,autolab/Autolab,cg2v/Autolab,cg2v/Autolab,autolab/Autolab,autolab/Autolab,cg2v/Autolab,cg2v/Autolab,autolab/Autolab