[bt-devel] new setup feature

[Troy A. Griffitts]

I've added a new feature to the setup tool.

The new feature allows syntax like the following

...
        <files path=${KDEDIR|/usr/local}/share>
                kdesharebase.tar.gz
        </files>
...

This parses any ${ENVVAR} token and replaces it with the environment
variable value.  You may also specify a default value if the environment
variable is not set: ${ENVVAR|default_value}

Hope this is useful.  I've built a bibletimebase.tar.gz and added it to
the setup.xml config for the ISO.  It seems to work good. KDEDIR is
pointing to /usr on my redhat 6.1 box.  It installs correctly.

I'll post the ISO changes when I get a CD burned at home and bring it in
to work this weekend to upload.  I'll also try to build directory with
symbolic links pointing to the files needed to test the install process
so we won't need to download the entire ISO for testing each change.

	 God is so faithful and sure,
		-Troy.