Implement a restart facility.
If you select to debug ct-ng, then you have two new options:
- DEBUG_CT_PAUSE_STEPS : pause between every steps,
- DEBUG_CT_SAVE_STEPS : save state between every steps.
To restart a saved state, just set the RESTART make variable when calling make:
- make RESTART=<step_name>

Add two new versions to binutils.

Update the mips-unknown-linux-uclibc sample to the new set of config options.
Switch the ISA from mips32 to mips1.

Port the custom ISA patch to uClibc-0.9.29

Only prompt for libfloat for those target that support it.

Fix warning about setting --host and not --build.

Upgrade scripts/tarball.sh and scripts/saveSample.sh to use the new logging facility.

Move the config script for the build dir to the source dir.
That will be useful when we have the restart functionality.

Fix gdb to install in CT_PREFIX_DIR rather than CT_INSTALL_DIR.
One day, I swear, I will implement the install directory option. But later.

Ah! I finally have a progress bar that doesn't stall the build!
- pipe size in Linux is only 8*512=4096 bytes
- pipe size is not setable
- when the feeding process spits out data faster than the eating
process can read it, then the feeding process stalls after 4KiB
of data sent to the pipe
- for us, the progress bar would spawn a sub-shell every line,
and the sub-shell would in turn spawn a 'date' command.
Which was sloooww as hell, and would cause some kind of a
starvation: the pipe was full most of the time, and the
feeding process was stalled all this time.

Now, we use internal variables and a little hack based onan offset
to determine the elapsed time. Much faster this way, but still
CPU-intensive.