Fix transferProps function not to transfer staticContext prop (#81)

Author: bedrich-schindler

src/lib/utils/__tests__/transferProps.test.js

@@ -30,6 +30,7 @@ describe('transferProps', () => {
       children: 'value',
       className: 'value',
       forwardedRef: 'value',
+      staticContext: 'value',
     };
     const blacklistedProps = null;
     const expectedProps = {};

src/lib/utils/transferProps.js

@@ -1,4 +1,4 @@
-const ALWAYS_BLACKLISTED_PROPS = ['children', 'className', 'forwardedRef'];
+const ALWAYS_BLACKLISTED_PROPS = ['children', 'className', 'forwardedRef', 'staticContext'];
 
 export default (props, blacklistedProps) => {
   const propsToTransfer = { ...props };