Upd deps: react-navigation to beta-15, rm RN-button, upd mobx & mobx-react (#2584)

* upd deps

* upd pkgs

* upd RN to fix test

* upd mobx & mobx-react

Author: kesha-antonov

Example/yarn.lock

@@ -3230,12 +3230,6 @@ react-devtools-core@^2.0.8:
     shell-quote "^1.6.1"
     ws "^2.0.3"
 
-react-native-button@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/react-native-button/-/react-native-button-2.1.0.tgz#a39e23292922afeea4f7be141dd43e18f1b51876"
-  dependencies:
-    prop-types "^15.5.10"
-
 react-native-dismiss-keyboard@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/react-native-dismiss-keyboard/-/react-native-dismiss-keyboard-1.0.0.tgz#32886242b3f2317e121f3aeb9b0a585e2b879b49"

package.json

@@ -18,16 +18,15 @@
   },
   "dependencies": {
     "lodash.isequal": "^4.5.0",
-    "mobx": "^3.1.16",
-    "mobx-react": "^4.2.1",
+    "mobx": "^3.3.1",
+    "mobx-react": "^4.3.4",
     "opencollective": "^1.0.3",
-    "prop-types": "^15.5.10",
-    "react-native-button": "^2.0.0",
-    "react-navigation": "^1.0.0-beta.13"
+    "prop-types": "^15.6.0",
+    "react-navigation": "^1.0.0-beta.19"
   },
   "devDependencies": {
-    "@types/react": "^16.0.7",
-    "@types/react-native": "^0.48.9",
+    "@types/react": "^16.0.20",
+    "@types/react-native": "^0.50.0",
     "babel-cli": "~6.24.1",
     "babel-eslint": "^6.0.3",
     "babel-jest": "20.0.3",
@@ -44,9 +43,9 @@
     "jest": "20.0.4",
     "prettier-eslint": "^6.4.2",
     "prettier-eslint-cli": "^4.1.1",
-    "react": "16.0.0-alpha.12",
-    "react-native": "0.45.1",
-    "react-test-renderer": "16.0.0-alpha.12"
+    "react": "16.0.0",
+    "react-native": "0.50.1",
+    "react-test-renderer": "16.0.0"
   },
   "peerDependencies": {
     "react": "*",
@@ -58,7 +57,7 @@
       "<rootDir>/Example/"
     ],
     "transformIgnorePatterns": [
-      "node_modules/(?!(jest-)?react-native|react-navigation)"
+      "node_modules/(?!(jest-)?react-native|react-navigation|mobx-react)"
     ],
     "setupFiles": [
       "./test/setup.js"