Fix incorrect long value restoration from strings.xml (microsoft#956)

Fix potencial incorrect long value restoration from strings.xml (please,
see microsoft/cordova-plugin-code-push#264)

Author: ruslan-bikkinin

android/app/src/main/java/com/microsoft/codepush/react/CodePush.java

@@ -103,7 +103,9 @@ long getBinaryResourcesModifiedTime() {
         try {
             String packageName = this.mContext.getPackageName();
             int codePushApkBuildTimeId = this.mContext.getResources().getIdentifier(CodePushConstants.CODE_PUSH_APK_BUILD_TIME_KEY, "string", packageName);
-            String codePushApkBuildTime = this.mContext.getResources().getString(codePushApkBuildTimeId);
+            // replace double quotes needed for correct restoration of long value from strings.xml
+            // https://github.com/Microsoft/cordova-plugin-code-push/issues/264
+            String codePushApkBuildTime = this.mContext.getResources().getString(codePushApkBuildTimeId).replaceAll("\"","");
             return Long.parseLong(codePushApkBuildTime);
         } catch (Exception e) {
             throw new CodePushUnknownException("Error in getting binary resources modified time", e);

android/codepush.gradle

@@ -19,7 +19,9 @@ void runBefore(String dependentTaskName, Task task) {
 gradle.projectsEvaluated {
     def buildTypes = android.buildTypes.collect { type -> type.name }
     android.buildTypes.each {
-        it.resValue 'string', "CODE_PUSH_APK_BUILD_TIME", Long.toString(System.currentTimeMillis())
+        // to prevent incorrect long value restoration from strings.xml we need to wrap it with double quotes
+        // https://github.com/Microsoft/cordova-plugin-code-push/issues/264
+        it.resValue 'string', "CODE_PUSH_APK_BUILD_TIME", String.format("\"%d\"", System.currentTimeMillis())
     }
     def productFlavors = android.productFlavors.collect { flavor -> flavor.name }
     if (!productFlavors) productFlavors.add('')