Get initial build to work.

Modified build to work with maven 2

Modified so it will download monasca-common jars
from tarballs.openstack.org if the user is jenkins, otherwise the
user is told to build and install monasca-common

Had to move the source code to the new thresh directory so that a
separate module could do the download before dependencies would
be checked by maven

Had to explicitly set the project name in the control file, not sure
why

Change-Id: Ic4d02478b078aad7c1f0eebda2ea2def8d9edf1a