1st version of volume attachment for storage.
Merge remote-tracking branch 'upstream/master'
Default values for VM instance type (t1.micro) and sec. group (default).
Merge pull request #93 from vincent-zurczak/master

Important refactoring and simplification of the DM
Use openstack-java-api 3.2.2-SNAPSHOT instead of 3.2.1 (network issues).
#99 Graph validator doesn't check children existence
Do not send awaiting messages when the root instance is not deployed
Merge remote-tracking branch 'upstream/master'

Conflicts:
	roboconf-iaas-ec2/src/main/java/net/roboconf/iaas/ec2/IaasEc2.java
Merge remote-tracking branch 'upstream/master'
Add better reporting for the messaging with RabbitMQ
#97 Added networkId / fixedIp for Neutron networks
Merge remote-tracking branch 'upstream/master'
Added thread-safe table of used IP addresses (to avoid multiple alloc.
of same IP).
Delete temporary directories created from uploaded ZIP
Temporary fix for Travis build
Skip signing
When starting fails, go back to deployed_stopped
Added unit testing of puppet plugin operations (on a real app)
Skip tests when there is no local RabbitMQ
Comment Neutron support until it is released