CFY-1500 implement attributes REST call
CFY-1500 add get node instances by node id
CFY-1500 implement get node instances by node id in es storage
CFY-1500 use process_attributes function
CFY-1500 add tests for different validations
CFY-1500 use update evaluate_outputs function
CFY-1500 for travis
CFY-1500 add test to get_attribute in intergration tests
CFY-1500 update eval output and processes attributes to use updated dsl functions
CFY-1500 fix blueprint
CFY-1500 fix test
CFY-1500 rename process attributes to evaluate functions
CFY-1500 rename node_id to node_name in list node instances REST call
Merge pull request #161 from cloudify-cosmo/CFY-1500-get-attribute

Cfy 1500 get attribute
fix dev req
Bump version to 3.1rc2
CFY-1308 added support for 14.04 agent
CFY-1308 fixed cast
CFY-1308 added special case for ubuntu agents
CFY-1308 fixed path issue