* Fixed various -Wincompatible-pointer-types-discards-qualifiers warnings by adding const
* Fixed various -Wincompatible-pointer-types-discards-qualifiers warning by removing extraneous consts
There were casts with const, but the function parameter doesn't actaully take const, so just modified the casts.
In the other case, a local variable was const that should not have been, becuase its source wasn't const either.
* Fixed a -Wincompatible-pointer-types-discards-qualifiers warning by strdup-ing a string
Create a duplicate string instead of mutating a supposedly const one.
* Modify temporary rpath for testing in java example scripts.
* Update URL in source file Copyright headers for web copy of COPYING
file - files not in src or test.
Also support references to external files
Add new H5T_REF type and type conversion routines
Support conversion from H5T_REF_OBJ/DSET_REG to H5T_REF
Add H5Treclaim() API to reclaim memory of vlen/reference types
Deprecate H5Dvlen_reclaim()
Fix H5T_vlen_reclaim() and H5T_reclaim() to use private callback
Add H5T_ref_reclaim()
Move previous H5R APIs to H5Rdeprec.c
Clean up H5Ocopy
Separate H5O_copy_expand_ref() to H5Ocopy_ref()
Add support for copying new reference types
Clean up deprecated routines to go through VOL and same code path
Fix return codes in existing trefer.c test
Rename trefer.c to trefer_deprec.c
trefer.c is for new references
Add performance test for trefer
Add additional obj_copy_ref test
Make use of tokens and blobs to store references
Skip blob encoding for object references
Start adding new reference examples
