Add krb5-kdc-ldap with doc examples

[SergeyBelyaevSetronica]

This PR is related to issues/57.

[SergeyBelyaevSetronica]

make

...
Step 8/10 : RUN /container/tool/install-service
 ---> Using cache
 ---> 3bc9b2fb4854
Step 9/10 : ADD environment /container/environment/99-default
 ---> Using cache
 ---> 3ccad810bcc0
Step 10/10 : EXPOSE 389 636
 ---> Using cache
 ---> 84d41cca5697
Successfully built 84d41cca5697
Successfully tagged osixia/openldap:1.1.11

test

$ docker run -itd --name test01 osixia/openldap:1.1.11
4d2f4c65b139036c50e44bf2d9db4b384fc85e674cfb8f3b80f4d4aff51b020e
$ docker exec -it test01  ls -la /usr/share/doc/krb5-kdc-ldap
total 124
drwxr-xr-x   2 root root  4096 Dec  5 10:36 .
drwxr-xr-x 182 root root  4096 Dec  5 10:36 ..
-rw-r--r--   1 root root 32274 Aug  9 16:19 changelog.Debian.gz
-rw-r--r--   1 root root 61681 Aug  9 16:17 copyright
-rw-r--r--   1 root root  4830 Dec  1  2016 kerberos.ldif.gz
-rw-r--r--   1 root root  4776 Dec  1  2016 kerberos.schema.gz
-rw-r--r--   1 root root  1200 Aug  9 16:17 NEWS.Debian.gz

[BertrandGouny]

Thanks !
Merged in 1.1.11 :)