adds arguments for full-auto install and run

adds arguments for full-auto install and run

-y will supply yes or enter presses to every prompt the installer would
otherwise ask for, and supply 'evergreen' as the default password for the
evergreen database user, and also automate the editing of /etc/hosts

-a will automatically start OpenSRF, modify some Apache settings, and
restart Apache

This commit also changes the default branch from
collab/berick/debian-wheezy-install-target to
collab/berick/per-distro-install-makefiles

and makes shallow git clones

Thanks to Bill and Lebbeous for help on this.

Signed-off-by: Jason Etheridge <jason@esilibrary.com>