Update Russian translations

These were wrongly committed to master first instead of 2.5, and then cherry-picked by a colleague. This went wrong. I'm now re-committing them.

Contributes to issue CURA-3487.

resources/i18n/ru/uranium.po

@@ -8,15 +8,15 @@ msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2017-03-27 17:40+0200\n"
-"PO-Revision-Date: 2017-01-06 23:40+0300\n"
+"PO-Revision-Date: 2017-03-30 15:06+0300\n"
 "Last-Translator: Ruslan Popov <[email protected]>\n"
 "Language-Team: none\n"
 "Language: ru\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
-"X-Generator: Poedit 1.8.11\n"
+"X-Generator: Poedit 2.0\n"
 
 #: /home/ruben/Projects/Uranium/plugins/Views/WireframeView/__init__.py:13
 msgctxt "@label"
@@ -429,12 +429,12 @@ msgstr "Была импортирована конфигурация от ста
 #: /home/ruben/Projects/Uranium/UM/View/GL/OpenGL.py:45
 msgctxt "@message"
 msgid "Failed to Initialize OpenGL"
-msgstr ""
+msgstr "Не удалось инициализировать OpenGL"
 
 #: /home/ruben/Projects/Uranium/UM/View/GL/OpenGL.py:55
 msgctxt "Critical OpenGL Extensions Missing"
 msgid "Critical OpenGL extensions are missing. This program requires support for Framebuffer Objects. Please check your video card drivers."
-msgstr ""
+msgstr "Важные дополнения OpenGL отсутствуют. Данная программа требует поддержки для объектов фреймбуфера. Пожалуйста, проверьте драйвер своей видеокарты."
 
 #: /home/ruben/Projects/Uranium/UM/FileHandler/ReadFileJob.py:36
 #, python-brace-format