Log Message:
Updated devel/cr2 from 0.1b6 to 0.3.4
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0.3.4 2017-04-04
  - bumped version number to 0.3.4, added credits
0.3.3 2016-09-15
  - development of building infrastructure, better selection of C++11
0.3.2 2016-09-14
  - udpated installation infrastructure to work with recent revision
    of re2 under the autotools
0.3.1 2016-03-18
  - bumped version number to 0.3.1
0.3.0 2016-03-17
  - bumped version number to 0.3.0
0.2.0 2016-02-16
  - documentation review