While at it, remove TABs from indentation in "CMakeLists.txt".

Change-Id: I663afc40f693d61c31992e5d6a47d2ff0d1d506a

Configure GitSetup scripts for KWSys.  Run them from a single
SetupForDevelopment.sh script.

Change-Id: Ic4f02175fd65e2f4fe5688e43313766c2b23458f

Add a script implementing our standard "git gerrit-push" alias.  When
invoked, first check that the current branch is a named topic.  Then
fetch 'master' from the 'gerrit' remote repository so the local
repository can compute a minimal pack to push.  Finally, push the topic
to the 'gerrit' remote as "refs/for/master/$topic".

Add a .gitattributes line to match both "config.sample" and any config
file added by the containing project.

Add the "export-ignore" attribute to all such files.  Remove the
suggestion from the README since this should not be a responsibility
of the including project.

Prompt the user to configure user.name and user.email interactively.