Tuned puppet-kafka for logstream:
  - Add package.pp which allows to install kafka from .deb package.
  The original project just supports .rpm package.

  TODO: haven't finished the testing yet. Will keep update on
  this thread.

Signed-off-by: Leon Cui <leon.cui@outlook.com>
Fixed the issue in puppet-kafka which can't create
the config directory. Also turn to use kafka/service
user/group aligned with other services.

Signed-off-by: Leon Cui <leon.cui@outlook.com>
Fixed kafka user/group issue. Make sure kafka user is added into
"service" group

Signed-off-by: Leon Cui <leon.cui@outlook.com>
Merge pull request #1 from logstream/develop

Tuned puppet-kafka for logstream-cd server