[conformal/btcjson] 708dce: Fix sendmany optarg parsing and add tests.

[Josh Rickmar]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcjson
  Commit: 708dce8d99dd3a8d3586d29487d8da6f757b4e6b
      
https://github.com/conformal/btcjson/commit/708dce8d99dd3a8d3586d29487d8da6f757b4e6b
  Author: Josh Rickmar <jr...@devio.us>
  Date:   2013-11-27 (Wed, 27 Nov 2013)

  Changed paths:
    M jsoncmd.go
    M jsoncmd_test.go

  Log Message:
  -----------
  Fix sendmany optarg parsing and add tests.