Branch: b1_4

Branch: b1_4
Have local, lov, uml, mount2fs.sh configs all generate the config.xml
file based on their own filename instead of hard coding it.  This makes
it easier to copy the config to another name, edit it, and then run
"NAME=foo sh llmount.sh" and similar tests.

Allow mount2fs.sh config to have some parameters overridden, and add
"--group fs{1,2}" to the config to allo testing startup/shutdown of
each filesystem independently.