Fix: HBAC Test tab is missing

Caused by typo in metadata provider source path.

No metadata -> no HBAC test entity -> no tab

https://fedorahosted.org/freeipa/ticket/3627
Remove leading zero from IPA_NUM_VERSION

The numeric IPA_NUM_VERSION contained a leading zero, so it was treated
as octal value in Python code instead of decimal.

https://fedorahosted.org/freeipa/ticket/3622
Set KRB5CCNAME so that dirsrv can work with newer krb5-server

The DIR ccache format is now the default in krb5-server 1.11.2-4
but /run/user/<uid> isn't created for Apache by anything so it
has no ccache (and it doesn't have SELinux permissions to write here
either).

Use KRB5CCNAME to set a file path instead in /etc/sysconfig/dirsrv.

https://fedorahosted.org/freeipa/ticket/3628