DControllerBase was modified to support a means for derivations to
contribute additional information to extended version info returned
by DControllerBase::getVersion(true).  This removes the need to link
process lib with libraries it does not need.

src/bin/d2/d2_controller.h
src/bin/d2/d2_controller.cc
    D2Controller::getVersionAddendum() - new method which reports
    D2 dependencies (currently only cryptolink)

src/lib/process/Makefile.am
    Removed temporary link to cryptolink

src/lib/process/d_controller.h
src/lib/process/d_controller.cc
    DControllerBase::getVersionAddendum() - new virtual method so
    derivations can contribute to extended version information

    DControllerBase::getVersion(bool extended) - modified to call
    getVersionAddendum(), removed explict calls for crypto and
    RDBMs versions

Added unit test support