Merge branch 'master' of github.com:simplesamlphp/simplesamlphp

# By Jakob Schlyter
# Via Jaime Pérez Crespo (1) and Jakob Schlyter (1)
* 'master' of github.com:simplesamlphp/simplesamlphp:
  create /var/lib/simplesamlphp/cert
  bump release
  update vendor
  do not depend on php-pecl-krb5, only used for negotiate
  speling
  typo
  RPM specfile for simpleSAMLphp, tested on CentOS 7