slapi-nis-0.56.1-bp150.2.5

- Add libnsl-devel build requires for glibc obsoleting libnsl

- update to 0.56.1
  - Support querying external users by UPN alias
  - Don't clobber target of the pblock for ID views
  - Add priming thread to populate the map cache without blocking
    the DS
  - Add support for changing passwords for users from a primary
    tree
  - requires DS 1.3.5.6 or later

- update to 0.55
  - Support external members of IPA groups in schema compat
  - Support bind over ID overrides when uid is not overridden
  - Populate schema compat trees in parallel to LDAP server startup

- Use pkgconfig() symbols to request buildtime requirements

- Source extracted from Fedora 21 release SRPM, with minor adjustments.