Update ru.coffee

I am extremely dissatisfied the support of CodeCombat internationalization by programmers. Make changes to the requirements of the new code; it must be completely covered by the i18n tags reflected in en.coffee.
Scroll to candidate position while going back
Implemented save notes button
Fixed logic for displaying runtime errors from last run based on code being the same as last cast.
Merge branch 'master' of https://github.com/codecombat/codecombat
Update zh.coffee
Create new language--the wuu-chinese

Just for Wuu Chinese, including Shanghainese and such language in Zhejiang Province, China.
Merge pull request #946 from benojan/patch-1

Update zh.coffee
Integrating Wu as zh-WUU-HANS and zh-WUU-HANT; hacking on a fork of i18next to do so.
Added zh-WUU-HANS stubs.
Keeping Wu English stub.
Merge branch 'benojan-patch-2'
Merge pull request #930 from M-r-A/patch-1

Update ru.coffee
Added some i18n tags.
Propagated new i18n tags.
Implemented George's gold design.
Fix HTML icon syntax in the Markdown.
Fixed #893.
Moved modals down a bit; watch out, not sure why they were !important before.
first translation contribution