CLOUDIFY-2431 added context property to plugins execution
CLOUDIFY-2431 pass cloudify_runtime as capabilities in context
CLOUDIFY-2431 changed tests to use context decorator
CLOUDIFY-2431 added node properties to plugin invocation context
CLOUDIFY-2433 use single operation decorator for tasks
CLOUDIFY-2433 changed test to use ctx.related instead of source and target properties in relationships
CLOUDIFY-2433 fixed uninstall test assertions
CLOUDIFY-2433 changed tests to use ctx instead of __cloudify_id
CLOUDIFY-2433 changed tests to use ctx instead of __cloudify_id
CLOUDIFY-2433 fixed tests
CLOUDIFY-2433 removed relationships target/source properties injection from execute task participant
CLOUDIFY-2433 fixed indentation
Merge pull request #135 from CloudifySource/feature/CLOUDIFY-2431-plugins-context

CLOUDIFY-2431-plugins-context