hdf5

[svn-r26164] Updated autogen.sh to use the --force option on all tools
when available. Also added the --copy option to to libtoolize
so files are copied and not symlinked.

Part of HDFFV-9114

Tested on jam.

- autogen.sh -p
- configure (out-of-source)
- Modified configure.ac
- Re-run autogen.sh -p
- Re-run configure
- make

Without the fix, make fails when it notes out-of-date autotools
files and re-runs the tools, picking up jam's elderly versions.
With the fix, make succeeds.