vchoi_fork

[svn-r24969] Description:
    - Added wrappers to H5Object for H5Iget_name() to get object's name
        ssize_t getObjName(char *obj_name, size_t buf_size = 0) const;
        ssize_t getObjName(H5std_string& obj_name, size_t len = 0) const;
        H5std_string getObjName() const;
    - Added tests tobject.cpp
    - Added to various cleanup_* functions in tests to remove generated files
    - Added an overload H5I_type_t getHDFObjType() to get object's type
Platforms tested:
    Linux/ppc64 (ostrich)
    Linux/32 2.6 (jam)
    SunOS 5.11 (emu) with gmake