Extend mail map

Author: alex-kulakov

.mailmap

@@ -3,9 +3,11 @@ Dmitri Maximov <dmitri.maximov@gmail.com> Dmitri Maximov <info@x-tensive.com>
 Dmitri Maximov <dmitri.maximov@gmail.com> !amd <info@x-tensive.com>
 Denis Krjuchkov <denis.krjuchkov@gmail.com> Denis Krjuchkov <info@x-tensive.com>
 Alexis Kochetov <alexis.kochetov@gmail.com> Alexis Kochetov <info@x-tensive.com>
-Alexis Kochetov <alexis.kochetov@gmail.com> Alexis Kochetov <info@x-tensive.com>
 Alex Yakunin <alex.yakunin@gmail.com> Alex Yakunin <info@x-tensive.com>
 Sergey Yakunin <sergey@yakunins.com> Sergey Yakunin <info@x-tensive.com>
 Sergey Yakunin <sergey@yakunins.com> !btr <info@x-tensive.com>
 Alexey Gamzov <alex@gamzov.com> Alexey Gamzov <info@x-tensive.com>
-Alexey Groznov <alex.groznov@gmail.com> Alexey Groznov <info@x-tensive.com>
+Alexey Groznov <alex.groznov@gmail.com> Alexey Groznov <info@x-tensive.com>
+Csaba Beer <beercsaba@gmail.com> Csaba Beer <info@x-tensive.com>
+Alex Kofman <al.kofman@gmail.com> Alex Kofman <info@x-tensive.com>
+Alex Shtin <alex@shtin.com> !shtin <info@x-tensive.com>