Search Bar does not work in currency picker

[rozeridilar]

Hello there!

In the gif from read me, search bar seems working. I added to my project everything works well just search bar is not working in demo project nor in my app.

[dillidon]

I'll check this out.

[shannonchou]

Same problem in Country Picker and Phone Code Picker. Works in simulator not in real device.

[shannonchou]

Oh, just because case sensitive.

[shannonchou]

I create a pull request about this improving.
#72