Clear cached InetSocketAddress on reconnect.

[jtanner]

This is necessary when the underlying IP address of a host name is changed. Recently our redis provider (Redis Labs) did some maintenance and changed the IP address of the host to which our apps were connected. Rediscala was not able to reconnect after this IP change and our apps had to be rebooted.

[coveralls]

Coverage increased (+0.14%) when pulling 31a2394 on SpinGo:bust-cache into b5f1769 on etaty:master.

[jtanner]

Hmm, the failing test (RedisClientActor should ok) passes on my machine :/

[etaty]

Yes it is Travis and the overloaded instances...
Your PR seems ok to me, i will merge it.

You solved the problem by making a new InetSocketAddress for each connection.
I am curious if there is a way to avoid to touch the DNS or if there is a cache in the jvm for such thing.

[jtanner]

The JVM does cache DNS entries, which can be a problem if the entries are cached forever sun.net.InetAddressCachePolicy.get() == -1 see the code, but it should default to only caching for 30 seconds. However, that doesn't help when the InetAddress is cached in InetSocketAddress see the code.

[abustany]

Great :) Any plans to release a 1.4.1?

[etaty]

done