Fix runtime loading of Test::*

Change-Id: I112ab1d036182c69e449065da70a4ec2778bc9cd
We use alarm internally in Kafka::IO (not Time::HiRes::alarm)

- We use alarm internally in Kafka::IO (not Time::HiRes::ualarm).
- For 'gethostbyname' operations the timeout is rounded to the nearest greater positive integer.
- Improvement of test t/*_io.t .
Change-Id: Ib1a83fd0d158be7f846573a7f5b8322def0738fa
Improved diagnostic.

- Change .gitignore
- Removed MYMETA.*
Change-Id: I642acd7897bb4c729fb75195ca03c7b5b687d276
Improved diagnostic (Kafka::Connection).

- Next small improvement.
Change-Id: I40b95d4d0b95fd364166bd6229fd7113e72d46f6
Added 'AutoCreateTopicsEnable' argument for Kafka::Connection
constructor, to use with auto.create.topics.enable property
in server configuration.

Change-Id: Ibe56253d1b22cc6c3c79c764ee5b23fb4ef1ddc5