- Update to 2.28.0
* Add NetworkManager and dhcp-client for CentOS 8
* Fix networking for CentOS 8
* simple-init: Use wrappers to call pip for glean install
* simple-init: default to NetworkManager for CentOS and Fedora
* Add security mirror override for debian-minimal
* pip-and-virtualenv : deprecate source for CentOS 8, new variables
* yum-minimal: Don't install yum, install libcurl
* Use $YUM instead of direct calls in more places
* Add environment switch for centos8 to use dnf
* Update redhat-common pkg-map for centos 8
* Update locales for Centos 8
* dib-python : handle centos 8
* yum-minimal : update mirrors for Centos 8
* Remove "failovermethod=priority" for Fedora (dnf)
* Install Python 3 libselinux packages for Fedora
* Revert "Fixed use of flake8"
* Only install doc requirements if needed
* Use x86 architeture specific grub2 packages for RHEL
* Move doc related modules to doc/requirements.txt