Merge pull request #2 from cbab/master

Switch private network IP to DHCP
add tracevisor parameter to deploy and automate the key exchange

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
deploy lttng on trusty

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
Add LTTng deployment script to Vagrant provisioning

Signed-off-by: Christian Babeux <christian.babeux@efficios.com>