Merge pull request #11 from ravitejagettam/test-m1-build

added the change for CONTRAIL_DEFAULT_INSTALL and greenlet to download/u...
Install kernel headers (needed for vrouter build)
Use juniper repo, fix stop services, pull neutron plugin to avoid package dependency issue, cassandra reduced memory option
Update localrc-all for PPA based installation
localrc-all for mainline
set mainline sample local-all for building from sources
devstack support files for master (t-o-t)
sync from 1.06 for review
Fix neutron_plugin_create_nova_conf; add empty line
Add simple test program to create network and launch VM
update plugin file to use devstack variabled
integrate fix from R1.06; fix for ifmapauthusers.properties
Greenlet not needed here? causing problem with version mismatch with source based installation
make neutron plugin configurable
Enable setting up connection to meta server
Merge branch 'master' of github.com:juniper/contrail-installer