Merge pull request #18 from a-x-/develop

add Russian translation file
Update CHANGELOG.md
Update PHPMailer.php from version 5.2.7 to 5.2.8
Update PHPMailer SMTP from version 5.2.7 to 5.2.8
Update CHANGELOG.md
Update CHANGELOG.md
Merge branch 'dev' into develop

* dev:
  Update CHANGELOG.md
  Update CHANGELOG.md
  Update PHPMailer SMTP from version 5.2.7 to 5.2.8
  Update PHPMailer.php from version 5.2.7 to 5.2.8
  Update CHANGELOG.md