Sokovikov a50bafa678 badgeColor property
Summary:
**motivation:**

make possible to use new tab bar item property

![1476033023249](https://cloud.githubusercontent.com/assets/1488195/19222245/f4c1292c-8e64-11e6-8a29-7b95b45e153c.jpg)
Closes https://github.com/facebook/react-native/pull/10315

Differential Revision: D4000011

Pulled By: mmmulani

fbshipit-source-id: 5c00b0b5f56c551cc4151fcc030da6c8bc1a3649
2016-11-29 11:43:31 -08:00
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2016-11-29 11:43:31 -08:00