fix vercel#1833, update all examples. (vercel#1834)

Author: aranajhonny

examples/svg-components/package.json

@@ -7,7 +7,7 @@
     "start": "next start"
   },
   "dependencies": {
-    "next": "beta"
+    "next": "latest"
   },
   "devDependencies": {
     "babel-plugin-inline-react-svg": "^0.2.0"

examples/with-pretty-url-routing/package.json

@@ -6,7 +6,7 @@
   },
   "dependencies": {
     "express": "^4.15.2",
-    "next": "^2.0.0",
+    "next": "latest",
     "next-url-prettifier": "^1.0.2",
     "prop-types": "^15.5.6",
     "react": "^15.4.2",

examples/with-shallow-routing/package.json

@@ -7,7 +7,7 @@
     "start": "next start"
   },
   "dependencies": {
-    "next": "next@beta",
+    "next": "latest",
     "react": "^15.4.2",
     "react-dom": "^15.4.2"
   },

examples/with-webpack-bundle-analyzer/package.json

@@ -8,7 +8,7 @@
     "bundle:view": "webpack-bundle-analyzer .next/stats.json"
   },
   "dependencies": {
-    "next": "beta",
+    "next": "latest",
     "react": "^15.4.2",
     "react-dom": "^15.4.2",
     "webpack-bundle-analyzer": "^2.3.0"