Re-enable Parallel_SimpleDataTest
Merge pull request #130 from ComputationalRadiationPhysics/fix-simpleDataTest

Re-enable Parallel_SimpleDataTest
Add --enable-parallel for HDF5 Configure
Use H5F_UNLIMITED only if necessary
Clean Up Recommended Section and Shared
Increase minor file format version (2.1)
Merge pull request #134 from ax3l/doc-hdf5Flags

Add --enable-parallel for HDF5 Configure
Merge pull request #135 from ComputationalRadiationPhysics/topic-fixedSizes

Use H5F_UNLIMITED only if necessary
Add Changelog for 1.2.1
Merge pull request #136 from ax3l/doc-notes1.2.1

Add Changelog for 1.2.1
Merge pull request #137 from ComputationalRadiationPhysics/dev

Release 1.2.1: Non-Extensible Data Sets