Merge pull request #85 from mgcam/devel

volume check bug fix, some export tidy-up
added a test for calling epp with multiply actions
add the possibility to epp and mapper to call multiply actions
added another test for mapper
Refactored create_label a little
Added ability to print temp label that is not
connected to any container
Added new label and print modules
Allows option to only create worksheet
added test whether the provided attribute goes to the right action
executing the actions after instantiated them
dummy action for the attribute test
change the description for the package_names method
revert back to using the new() constructor

also added a new test for multiple actions
this functionality already tested

in src/perl/t/10-epp-executing_multiply_actions.t
Few modifications

Made json request private in print module
Changed label module into Moose role
Small fixes to worksheet
c15 Reactivate stock plate

Added new action to mapper
Created to Moose role to find a specified parent process
Made to_workflow required argument
Added missing semi colon
Merge pull request #89 from jbeast/worksheet_mods

Allows option to only create worksheet