currency_dropdown 0.0.3

Currency dropdown widget.

[0.0.1] - 14th July 2018.

• Initial version of currency dropdown

[0.0.2] - 20th July 2018

• Modified the code to react to value changes from the parent to the dropdown

[0.0.3] - 20th July 2018

• Modified the selection callback to return currency symbol as well.