Kill off bashisms in ./configure (thanks to Enrico Weigelt <weigelt@metux.de>).

Sanitise ./configure a little bit.
Add a check for bash 3.0 or above.

Don't use /bin/sh for crosstool-NG build scripts, we want /bin/bash!
Don't hardcode ncurses include and link flags.

Update credits to give adequate credit to Al Stone.

Merge from branches/ia64@476 : add ia64 preliminary support.

make-3.80 does not have $(lastword ...). Fix this when ct-ng calls itself: don't try to be smart, we just _know_ where ct-ng is at configure time!
Fis a latent bug in handling the number parallel jobs.

Use symlinks to the localy stored tarballs rather than copying them.
If saving tarballs to local storage is selected, move newly downloaded tarballs there and symlink.

In a directory previously used as CT_TOP_DIR, when using a new version, ct-ng will fail to create the symlink to the new config files.
Fix that by forcing creation of the symlink, even if it already exists and points to a previous location.

Add D.U.M.A. 2_5_8 and associated patches.
Fix a patch for D.U.M.A 2_5_1.
Add libelf 0.8.10, still does not build... :-(

ARM defaults to LE, MIPS to BE. Reflect this in the target configuration options.