Update README.md
Update README.md
CLOUDIFY-1860 added target parameter for sending tasks
CLOUDIFY-1860 fix compilation
CLOUDIFY-1860 remove unused import
CLOUDIFY-1860 fix tests parameters
Merge pull request #7 from CloudifySource/feature/CLOUDIFY-1860-celery-task-target

Feature/cloudify 1860 celery task target parameter
CLOUDIFY-1861 added listener registration to mock celery worker
CLOUDIFY-1861 fix compilation
CLOUDIFY-1861 fix conflict