Determine selinux context for NFS mount points correctly

Fixes #7009
Make sure umask is set restrictively before creating any vault files
Updating changelog/releases/packaging for 1.5.5 release
Make sure HostVars object is instantiated before assigning it

Fixes #7006
Fix date in changelog for RPM builds off devel branch.
Merge branch 'issue_7009_nfs_selinux' into devel
fixed ETIME issue on FreeBSD 8 through 10, which broke all fact
gathering
Merge pull request #7081 from bcoca/freebsd_fact_fix

fixed ETIME issue on FreeBSD 8 through 10, which broke fact gather