* zip.h: Rename ZERR_* to ZIP_ER_*; rename ZIP_ET_ZIP to ZIP_ET_ZLIB; remove ZIP_CH_ISCOMP from zip.h.  Adapt users.
* zip.h: Rename ZERR_* to ZIP_ER_*; rename ZIP_ET_ZIP to
ZIP_ET_ZLIB; remove ZIP_CH_ISCOMP from zip.h.  Adapt users.

JanX2/libzip-git,projedi/libzip,det/libzip,det/libzip,cysp/libzip,JanX2/libzip-git,cysp/libzip,projedi/libzip,det/libzip,projedi/libzip,cysp/libzip,cysp/libzip,det/libzip,projedi/libzip