1.6.2
configure: drop user-nsswitch.conf support
lib: add upgrade parameter to apply-changes
selinux: correct error message
lib: bump soname version to 6:0:1
cli: add is-feature-enabled
lib: add pkgconfig file
lib: fix use of potentially dangerous function
lib: use better names for exported functions
lib: reorganize header files
lib: fix typo in authselect_profile.c
lib: create donf database directory if it does not exist