Add single and multi selection lists to built-in controls
Increase minimum width of multiple selection list
Fix bad wrapping in url assignment
Use text() over html() when rendering select options
Remove template for selection list items
Support passing empty label in options to selection list
Use index based comparisons to prevent first option selection
Fix redundant assignment of emptyValueLabel
Make default empty value label option more obvious
Use improved selection iteration in onSelectionChange

Also, remove redundant check in getValue since we prevent the first
value from being selected.
Merge pull request #414 from cbmi/issue-403

Add single and multi selection lists to built-in controls