util-linux, apr-util, rdiff-backup, apache
mysql-5.5, stunnel, openldap, libpng

  fix typos
  add wrapper for instance configure command

  use slapos-windows-wrapper.bat to run build script

apache-frontend: change ps-util version

         merge patches to mariadb-5.5-cygwin.patch

      * no epoll in the cygwin, so we remove thread-pool functions
      * Error: CFI instruction used without previous .cfi_startproc
      * cmake could't configure ncurses