Merge pull request #99 in DNS/adguard-dns from feature/442 to master

* commit '63f20bc3979c61f71afcad1e9c7bbcdbe783a98e': (27 commits)
  Request language from server
  i18n -— fiz broken change_language APO method
  Allow querying and changeing i18n language via API.
  Update readme and translations
  Add ru locale
  Move translations script to scripts folder
  Fix footer layout
  Add oneskyapp scripts for download and upload translations
  Fix minor mistake
  Translate Copyright text on footer
  Fix wrong translate key
  Fix wrong check update button text
  Convert i18n resource to key type
  Translate missing toast message when toggle query log feature
  create locales/en.js and change to key type. Next may be use auto load translate resource
  Tranlsate missing toast message
  add missing translate
  Update missing trasnlate
  Fix eslint
  Add translate PopoverFilter
  ...

README.md

@@ -141,10 +141,44 @@ cd AdGuardHome
 make
 ```
 
+### How to update translations
+
+Before updating translations you need to install dependencies:
+```
+cd scripts/translations
+npm install
+```
+
+Create file `oneskyapp.json` in `scripts/translations` folder.
+
+Example of `oneskyapp.json`
+```
+{
+    "url": "https://platform.api.onesky.io/1/projects/",
+    "projectId": <PROJECT ID>,
+    "apiKey": <API KEY>,
+    "secretKey": <SECRET KEY>
+}
+```
+
+#### Upload translations
+```
+node upload.js
+```
+
+#### Download translations
+```
+node download.js
+```
+
 ## Contributing
 
 You are welcome to fork this repository, make your changes and submit a pull request — https://github.com/AdguardTeam/AdGuardHome/pulls
 
+If you want to help with AdGuard Home translations, please learn more about translating AdGuard products here: https://kb.adguard.com/en/general/adguard-translations
+
+Here is a direct link to AdGuard Home project: http://translate.adguard.com/collaboration/project?id=153384
+
 ## Reporting issues
 
 If you run into any problem or have a suggestion, head to [this page](https://github.com/AdguardTeam/AdGuardHome/issues) and click on the `New issue` button.