RFR: 125: Add support for timeouts to the SMTP client

[Robin Westberg]

Hi all,

Please review this change that introduces a timeout to the SMTP client code.

Best regards,
Robin

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Commits:
 - e6a84303: Add support for timeouts to the SMTP client, default to 30 minutes

Changes: https://git.openjdk.java.net/skara/pull/194/files
 Webrev: https://webrevs.openjdk.java.net/skara/194/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/SKARA-125
  Stats: 31 lines in 4 files changed: 22 ins; 0 del; 9 mod
  Patch: https://git.openjdk.java.net/skara/pull/194.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/194/head:pull/194

PR: https://git.openjdk.java.net/skara/pull/194