v1.8.6-Beta release

== new features/changes ==
kiss-vm: add rootdir, homedir sub-commands
kiss-vm: add more supported extension of image file
kiss-vm: let --postrepo option accept repo-url without reponame
kiss-vm: get a list if -p option is specified multi-times
kiss-vm: add --repo option
kiss-vm: add option --reboot
kiss-vm: add option --default-kernel
kiss-vm: add Arch Linux guest support
kiss-vm: resize the distro family radiolist box
kiss-vm: option --msize support suffix 'G', eg: --msize=16G
kiss-vm: add --hostdev,--host-device options
kiss-vm: add --hostif,--hostnic options
kiss-vm: use inst.ks= instead ks=
kiss-vm: Use netpbm in preference to 'gm convert'
kiss-vm: optimize code and add limited support debian-9 host
kiss-vm: check whether the host has enough mem for required
kiss-vm: optimize code, add curl_download_x()
kiss-vm: improve/optimize Cleanup() function
kiss-vm: add srcfiles sub-command and update completion file
utils/cloud-init-iso-gen.sh,ks-generator.sh: accept repo without name
utils: add get-sriov-pci-list.sh
utils: add get-pci-if-list.sh
utils: add clear-vms-home.sh
add LICENSE file
all: use 'command -v' instead 'which'
distro-db.bash: add openSUSE-Leap-15.3 in distro-db
distro-db.bash: add Rocky linux in distro-db

== fixes ==
utils/ks-generator.sh: fix unexpected repo url
utils/cloud-init-iso-gen.sh: fix brewinstall fail
utils/ggv-install: fix running gm fail in daily rhel-9
kiss-vm: s/apt-get/apt/g and s/zypper install/zypper in/g
kiss-vm: fix ssh-copy-id fail on some platform
kiss-vm: fix debian-10 cloud-init does not work in q35
kiss-vm: fix process of option --repo
kiss-vm: fix brewinstall fail in location mode
kiss-vm: fix yum repo while using import install type
kiss-vm: fix/improve code of getimageurls()
kiss-vm: fix the issue that get image url fail
kiss-vm: fix image_binarize
kiss-vm: fix apply cloud-init iso fail on host Fedora-34
kiss-vm: fix debian-10 cloud-init does not work in q35
kiss-vm: fix default network start fail on debian-9
kiss-vm: fix bug in _vmdelete()