ensure there is a duplicateModel in the stamp-editor (avoids an
undefined error condition)
stamp-editor now respects the CurrencyCode preference for defaults
validate the model conditions in the search panel on change for
enablement of the search button (not enabled unless there is a change)
drastically simplifies the select-picker by separating the value bound
from the internal select2 value - ie. it is never bound to the template
directory.
all select-picker cases appear to be working with some testing on
creates and edits.
handle the moment.js issues around date deprecation for string values
Fixes #128