Updated test data, selection page spec updated
update to selection page presenter spec
update to test json data (partial)
update to selection page presenter spec (partial) -> presenter construction has been changed
update to selection page presenter spec (partial)
update to selection page presenter spec (partial)
tests fixed after rebase
test data now goes as far as first tube transfer in kit binding
update to selection page presenter spec (partial)
test json extended to go as far as second transfer in kit binding
update to selection page presenter spec (partial)
update to selection page presenter spec (partial)
new tests for selection page presenter added. test modified in model: this was intefering with selection page presenter tests.
Add support for user errors
small clean up of barcodeErrorCallback
Merge pull request #162 from seandunn/user_validation_message

User validation message
Fix user name bug
Merge branch 'demo_display_fixes'
Merge pull request #159 from david-allen-tessella/selection_page_presenter_spec_and_integration_test_json

Selection page presenter spec and integration test json
first draft for the step buttons activation