message: Added icon styles to small button theme.
  Attempt to fix issue (small button with icon on iOS )
diff: @@ -257,6 +257,26 @@ export default (variables = variable) => {
  'NativeBase.Text': {
  fontSize: 14,
  },
  + '.iconLeft': {
  + 'NativeBase.Icon': {
  + fontSize: 20,
  + paddingTop: 0
  + },
  + 'NativeBase.IconNB': {
  + fontSize: 20,
  + paddingTop: 0
  + }
  + },
  + '.iconRight': {
  + 'NativeBase.Icon': {
  + fontSize: 20,
  + paddingTop: 0
  + },
  + 'NativeBase.IconNB': {
  + fontSize: 20,
  + paddingTop: 0
  + }
  + }
  },
  '.large': {
  