RetryWorkflowStrategyCommand and test added for retry mechanism
code clean - removed some comments from source
Removed MockInteractionCommand.java file and created MockCommand inside the test.
one more test added to check the total execution time in retry
Merge pull request #73 from JangidUK/retry-workflow-strategy

Retry workflow strategy
Resolves several issues with inline Entity resources.  Links with non fixed link relations were being dropped, link relations for inline resources were not being transformed by LinkInterceptor and atom entry id was always being returned as the root resource rather than the inlined resource.