fixes for HDF5
fixes for HDF5

- use CMAKE_ARGS as opposed to explicit configure command. This means
that any variables marked as superbuild will be passed through. In
particular, it means that the "original" CMAKE_GENERATOR and
CMAKE_GENERATOR_PLATFORM, which are essential on Windows, are now
used to build HDF5.
- make output of source and build consistent with other projects
- no longer build examples and tools (see #12)

CCPPETMR/SIRF-SuperBuild,CCPPETMR/SIRF-SuperBuild