ipa-kdb: remove unused variable
ipa-kdb: Uninitialized scalar variable in ipadb_reinit_mspac()

There was a code path where ret was used instead of kerr to save a
return value.

Fixes https://fedorahosted.org/freeipa/ticket/3422
ipa-sam: Array compared against 0 in ipasam_set_trusted_domain()

ipa_mspac_well_known_sids is a globally defined array so the check was
always true.

Fixes https://fedorahosted.org/freeipa/ticket/3423
ipa-kdb: Dereference after null check in ipa_kdb_mspac.c

A wrong logic was used to check ipactx.

Fixes https://fedorahosted.org/freeipa/ticket/3424
ipa-lockout: Wrong sizeof argument in ipa_lockout.c

Fixes https://fedorahosted.org/freeipa/ticket/3425
ipa-extdom: Double-free in ipa_extdom_common.c

Fixes https://fedorahosted.org/freeipa/ticket/3426
ipa-pwd: Unchecked return value ipapwd_chpwop()

Fixes https://fedorahosted.org/freeipa/ticket/3427
Fix includedir directive in krb5.conf template

We did not have the includedir directory with a trailing slash which made
rpm update add a redundant line.

https://fedorahosted.org/freeipa/ticket/3132