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Added parameters to task defintions
Change Workflow#input to return Hash
workflow input type fix
fix workflow input has key has to be converted to symbol (due to HashWithIndifferentAccess used in Workflow-mongoid)
fixed error in order of hash merging
simplified parameter propagation
factored out generic classes into LIBIS_Tools
removed unused code
logging and status report enhancements
update test
code cleanup
code cleanup
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