Fix android orientation exception. (#2278)

Fix android activity destroy/resume.
Fix tslint - skipped all from node_modules & platforms

gruntfile.js

@@ -166,7 +166,8 @@ module.exports = function(grunt) {
         "!tns-core-modules/ios.d.ts",
         "!tns-core-modules/android17.d.ts",
         "!tns-core-modules/libjs.d.ts",
-        "!tests/node_modules/"
+        "!tests/node_modules/**",
+        "!tests/platforms/**"
     ]);
     localCfg.srcTsdFiles = [
         "**/*.d.ts",

tns-core-modules/application/application.android.ts

@@ -3,6 +3,8 @@ import definition = require("application");
 import frame = require("ui/frame");
 import observable = require("data/observable");
 import * as typesModule from "utils/types";
+import * as enumsModule from "ui/enums";
+let enums: typeof enumsModule;
 
 global.moduleMerge(appModule, exports);
 var typedExports: typeof definition = exports;
@@ -137,12 +139,14 @@ function initComponentCallbacks() {
                 return;
             }
 
-            currentOrientation = newOrientation;
+            if (!enums) {
+                enums = require("ui/enums");
+            }
 
-            let enums = require("ui/enums");
+            currentOrientation = newOrientation;
             let newValue;
 
-            switch (orientation) {
+            switch (newOrientation) {
                 case android.content.res.Configuration.ORIENTATION_LANDSCAPE:
                     newValue = enums.DeviceOrientation.landscape;
                     break;

tns-core-modules/ui/frame/frame.android.ts

@@ -717,8 +717,6 @@ class FragmentClass extends android.app.Fragment {
             trace.write(`${this}.onDestroy()`, trace.categories.NativeLifecycle);
         }
         super.onDestroy();
-
-        this.entry.fragmentTag = undefined;
     }
 
     public toString(): string {