Upgrade NPM dependencies/packages: react-native 0.50

.flowconfig

 suppress_type=$FlowFixMeState
 suppress_type=$FixMe
 
-suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(>=0\\.\\(5[0-3]\\|[1-4][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)
-suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(>=0\\.\\(5[0-3]\\|[1-4][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)?:? #[0-9]+
+suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(>=0\\.\\(5[0-6]\\|[1-4][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)
+suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(>=0\\.\\(5[0-6]\\|[1-4][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)?:? #[0-9]+
 suppress_comment=\\(.\\|\n\\)*\\$FlowFixedInNextDeploy
 suppress_comment=\\(.\\|\n\\)*\\$FlowExpectedError
 
 unsafe.enable_getters_and_setters=true
 
 [version]
-^0.53.0
+^0.56.0

package-lock.json

       }
     },
     "flow-bin": {
-      "version": "0.53.0",
-      "resolved": "https://registry.npmjs.org/flow-bin/-/flow-bin-0.53.0.tgz",
-      "integrity": "sha1-94MOYJygKxLbQScRQhPMzHwHcbk=",
+      "version": "0.56.0",
+      "resolved": "https://registry.npmjs.org/flow-bin/-/flow-bin-0.56.0.tgz",
+      "integrity": "sha1-zkMJIgOjRLqb9jwMq+ldlRRfbK0=",
       "dev": true
     },
     "flush-write-stream": {

package.json

     "eslint-config-jitsi": "github:jitsi/eslint-config-jitsi#v0.1",
     "eslint-plugin-flowtype": "2.39.1",
     "eslint-plugin-import": "2.8.0",
-    "flow-bin": "0.53.0",
+    "flow-bin": "0.56.0",
     "jasmine-core": "2.5.2",
     "karma": "0.13.22",
     "karma-chrome-launcher": "0.2.3",