update version to 1.1, make master latest

package.json

 {
   "name": "react-native-navigation",
-  "version": "2.0.0-experimental.0",
+  "version": "1.1.0",
   "description": "React Native Navigation - truly native navigation for iOS and Android",
   "license": "MIT",
   "nativePackage": true,

scripts/release.js

 const semver = require('semver');
 
 function execSync(cmd) {
-  cp.execSync(cmd, {stdio: ['inherit', 'inherit', 'inherit']});
+  cp.execSync(cmd, { stdio: ['inherit', 'inherit', 'inherit'] });
 }
 
 function execSyncRead(cmd) {
-  return String(cp.execSync(cmd, {stdio: ['inherit', 'pipe', 'inherit']})).trim();
+  return String(cp.execSync(cmd, { stdio: ['inherit', 'pipe', 'inherit'] })).trim();
 }
 
 function execSyncSilently(cmd) {
-  cp.execSync(cmd, {stdio: ['ignore', 'ignore', 'ignore']});
+  cp.execSync(cmd, { stdio: ['ignore', 'ignore', 'ignore'] });
 }
 
 function validateEnv() {
 }
 
 function calcNewVersion() {
-  const nextTaggedVersion = execSyncRead(`npm view ${process.env.npm_package_name}@next version`);
-  console.log(`next tagged version is: ${nextTaggedVersion}`);
-  return semver.inc(nextTaggedVersion, 'prerelease');
+  const latestVersion = execSyncRead(`npm view ${process.env.npm_package_name}@latest version`);
+  console.log(`latest version is: ${latestVersion}`);
+  console.log(`package version is: ${process.env.npm_package_version}`);
+  if (semver.gt(process.env.npm_package_version, latestVersion)) {
+    return semver.inc(process.env.npm_package_version, 'patch');
+  } else {
+    return semver.inc(latestVersion, 'patch');
+  }
 }
 
 function copyNpmRc() {
   console.log(`new version is: ${newVersion}`);
   execSync(`npm version ${newVersion} -m "v${newVersion} [ci skip]"`);
   execSyncSilently(`git push deploy --tags`);
-  execSync(`npm publish --tag next`);
+  execSync(`npm publish --tag latest`);
 }
 
 function run() {