Remove VOS floating-point workaround; VOS bug long since fixed
Assume that the host and target have the same executable suffix
Update VOS hints file to use dynamic linking and 64-bit stream files
Update README.vos to reflect recent changes
Update pod/perlpord.pod to reflect recent VOS port changes
Update copyright statement for the Stratus VOS port
Ensure only DOSish builds force O_BINARY=1 in the open path