R7.University 1.12.1

This is a mostly polishing release featuring localization update and some after-thought improvements for the DivisionDirectory module.

• Provide more semantics on divisions without head employee in the DivisionDirectory module.
• Hide informal divisions only from regular users, also grey out informal divisions for editors in the DivisionDirectory module.
• Fixed DivisionDirectory module in the Search mode produce wrong HTML markup (#156).
• Fixed (again) incorrect check for duplicate disciplines (#119).
• Finished russian UI translation (some UI strings still unstanslatable).
• Some localization fixes for Launchpad and Division modules.
• ControlTitle resource keys updated.
• Fixed bg color not applied to table rows on hover for not published items.
• Build system improvements, including build support for Visual Studio Code (mostly pushed from R7.Epsilon).

Note: Install R7.DotNetNuke.Extensions v0.8.0 and R7.ImageHandler packages first!