BIND 10 #3142: try using boost's asio

[BIND 10 Development]

#3142: try using boost's asio
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                   Reporter:  jreed  |                 Owner:  UnAssigned
                       Type:  task   |                Status:  new
                   Priority:  low    |             Milestone:  New Tasks
                  Component:  build  |              Keywords:
  system                             |             Sensitive:  0
               CVSS Scoring:         |           Sub-Project:  Core
            Defect Severity:  N/A    |  Estimated Difficulty:  0
Feature Depending on Ticket:         |           Total Hours:  0
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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 Also see ticket #3135.

 The task for this ticket is to try using boost's asio without depending on
 boost libraries.

 Maybe need to define BOOST_ASIO_HEADER_ONLY and undefine
 BOOST_ASIO_DYN_LINK and undefine BOOST_ASIO_SEPARATE_COMPILATION.

 I didn't test using my trac3135 branch because asio/error_code.hpp and
 asio/system_error.hpp do no exist in boost/asio but are referenced by our
 source code.

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Ticket URL: <http://bind10.isc.org/ticket/3142>
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