Merge tag '0.1.0' into develop

Release 0.1.0
added travis build to develop
CLOUDIFY-2048 import VAGRANT_MACHINE_IP from init
CLOUDIFY-2048 some refactoring. move shared data to init
CLOUDIFY-2048 added shared maps to init to be used by all tests
CLOUDIFY-2048 added cosmo-celery-common to dependencies for some constants
CLOUDIFY-2048 added support for installing agent under virtualenv
CLOUDIFY-2048 added test for virtualenv
CLOUDIFY-2048 fixed cosmo-celery-common dependency
CLOUDIFY-2048 dont download files again that have the same timestamp
CLOUDIFY-2048 cosmo-celery-dependency on develop branch, version 0.1.0
CLOUDIFY-2048 print contents of home dir
CLOUDIFY-2048 use sudo to create virtualenv and run just this test for now
CLOUDIFY-2048 run all tests
CLOUDIFY-2048 added logs
CLOUDIFY-2048 fix virtualenv test
CLOUDIFY-2048 fix test invocation
CLOUDIFY-2048 bump cosmo-celery-common dependency to 0.1.1
CLOUDIFY-2048 change cosmo-celery-common and plugin installer versions to be installed by the worker installer
CLOUDIFY-2048 remove debug print