Allow parallel-by specifications to be grouped
Test parallel_by flattening
Renmame command to task
Add missing use statements
Move modules related to rename
Merge branch 'master' of github.com:davidlmorton/ptero-perl-sdk

Conflicts:
	lib/Ptero/WorkflowBuilder/Detail/Node.pm
	t/WorkflowBuilder/Detail/Operation.t
Merge pull request #20 from davidlmorton/master

rename command to task