Fix creating the .../lib/ directory structure in the non-sysroot case

The symbol link that is created in the sysroot directory only needs
to be made when the cross compiler is build with the sysroot option

Signed-off-by: Bart van der Meulen <bartvdrmeulen@gmail.com>

Also set CT_DEBUGROOT_DIR for non sysroot-ed toolchains.

In the non-sysroot-ed case, the debuf-root directory would not be set;
debug tools would have been installed God-only-knows-where...

Spotted by Bart van der Meulen <bartvdrmeulen@gmail.com>.

[tools] Update config.guess and config.sub

Update from upstream.

Remove left-over debug lines.

Remove two lines of code that were commented out and are definitely not used.

Check paths sanity before they get used.

Don't use the PATHs before they get checked for sanity.

Better check for spaces in paths

Spaces are evil in paths. Print the path that contains a sapce.
Don't print computed paths, as they'rebased on provided paths,
and don't get space added into them.

[functions] Allow newlines (\n) in log messages

Allow caller to log messages with embedded newlines when calling
CT_DoLog and other logging functions (eg. CT_Abort...).

[finish-step] Fix the tools wrappers

Use the correct variable when iterating upon the tools
name to correctly link the tools to the wrapper.

Add .hgignore file.

List all generated or temp files in .hgignore, so they
don't clutter the screen when running hg status.

Merge the gcc-4.4 support.