pin react-native-tab-view with ~ instead of ^ (react-navigation#2348)

Because react-native-tab-view insists on sticking at 0.0.*, 
the caret version pinning won't install "minor" updates.

Semver rules are weird with 0. major versions.

Is this something you'd be interested in?

Author: hawkrives

package.json

@@ -51,7 +51,7 @@
     "path-to-regexp": "^1.7.0",
     "prop-types": "^15.5.10",
     "react-native-drawer-layout-polyfill": "^1.3.2",
-    "react-native-tab-view": "^0.0.67"
+    "react-native-tab-view": "~0.0.67"
   },
   "devDependencies": {
     "babel-cli": "^6.24.1",