libzip 1.11

• Stop searching after finding acceptable central directory, even if it contains inconsistencies.
• Only write Zip64 EOCD if fields don't fit in normal EOCD. Previously libzip also wrote it when any directory entry required Zip64.
• Allow bytes from 0x00-0x1F as UTF-8.
• Add new error code ZIP_ER_TRUNCATED_ZIP for files that start with a valid local header signature.
• zipcmp: add -T option for comparing timestamps.
• zip_file_replace now removes the target's extra field information.