1. Remove the node.info from read_id as the default. The read_id information is useful for phasing and debuging. We don't need it for
      fast consensus.
   2. Advance the version number to 0.2.1

   Timing test:

   $ time cram  gcon_test2.t 
   .
   Ran 1 tests, 0 skipped, 0 failed.

   real    2m25.380s
   user    2m35.980s
   sys     0m4.780s
   $ time cram q-senes_test2.t 
   .
   Ran 1 tests, 0 skipped, 0 failed.

   real    0m10.501s
   user    0m15.460s
   sys     0m0.740s

   Track Bug #21512

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/pbdagcon/": change = 121710]
Merge remote-tracking branch 'p4/master'
    1. Remove the node.info from read_id as the default. The read_id information is useful for phasing and debuging. We don't need it for
       fast consensus.
    2. Advance the version number to 0.2.1

    Timing test:

    $ time cram  gcon_test2.t
    .
    Ran 1 tests, 0 skipped, 0 failed.

    real    2m25.380s
    user    2m35.980s
    sys     0m4.780s

    $ time cram q-senes_test2.t
    .
    Ran 1 tests, 0 skipped, 0 failed.

    real    0m10.501s
    user    0m15.460s
    sys     0m0.740s