CLI v1.7.5 - New ${sourceLang} variable

New version 1.7.5 brings a new variable available in the download/conversion section ${sourceLang} that contains a source language of the project in ${lang}-compatible format.

It allows for writing universal download rules, e.g., for Android:

"download": {
  "includeSourceLang": "true",
  "files": [
    {
      "output": "app/src/main/res/values/strings.xml",
      "conditions": "equals: ${lang}, ${sourceLang}",
      "stop": true
    },
   {
     "output": "app/src/main/res/values-${langAndroidRes}/strings.xml",
     "conditions": "!equals: ${lang}, ${sourceLang}",
     "stop": true
   }
 ]
}