[Swan-commit] Changes to ref refs/heads/master

[D. Hugh Redelmeier]

New commits:
commit 0ba93b7a82f0d260a786c6dcf586479fa9c7d0e6
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Mon Jun 16 02:57:51 2014 -0400

    Fix exponential backoff in message retransmission.
    - retransmit_v1_msg still shifted by a constant as a backoff calculation!
    - added a cap on the exponential backoff in
      retransmit_v1_msg and retransmit_v2_msg
    - carefully avoid overflow and underflow in backoff calculation