Added Russian Translations

Redo of the PR #598

**Added:**
- Russian Translations

**Fixed:**
- corrected .gitignore rules for default modules

(Reasoning behind change: when I added translation for `alert` module `git add` was telling me that `.gitignore` rule excludes files and folders under `modules/default`)

I also noticed that `.gitignore:56` has following declaration:

```
!/modules/node_helper
!/modules/node_helper/**
```
but I don't think this directory structure exists today (also there is a small typo)

CHANGELOG.md

@@ -2,6 +2,14 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## [2.1.1] - Unreleased
+
+### Added
+- Russian Translation
+
+### Fixed
+- corrected .gitignore rules for default modules
+
 ## [2.1.0] - 2016-12-31
 
 **Note:** This update uses new dependencies. Please update using the following command: `git pull && npm install`