vchoi_fork

C++ API improvement
Description:
    - Added another argument, LinkCreatPropList& lcpl, to the CommonFG::createGroup()
      functions for the use of link creation property list.  The new argument has
      a default value.
        Group createGroup(const char* name, size_t size_hint = 0,
                    const LinkCreatPropList& lcpl = LinkCreatPropList::DEFAULT)
        Group createGroup(const H5std_string& name, size_t size_hint = 0,
                    const LinkCreatPropList& lcpl = LinkCreatPropList::DEFAULT)
    - Removed memory leaks caused by accidentally invoking p_get_member_type
    (in H5CompType.cpp, user reported via email, maybe no jira issue)
    - Made H5Location::closeObjId static, so no object is needed to close an hdf5 id.
    - Added classes StrCreatPropList, LinkCreatPropList, AttrCreatPropList
      for the C property list classes H5P_STRING_CREATE, H5P_LINK_CREATE,
      and H5P_ATTRIBUTE_CREATE.
Platforms tested:
    Linux/64 (jelly)
    Linux/64 (platypus)
    Darwin (osx1010test)