Travis failing due to missing R.string.upload_image_problem_blurry

[domdomegg]

Summary:

Travis failing compiling due to missing R.string.upload_image_problem_blurry since 174e58c by translatewiki.

:app:compileProdReleaseJavaWithJavac/home/travis/build/commons-app/apps-android-commons/app/src/main/java/fr/free/nrw/commons/utils/ImageUtils.java:243: error: cannot find symbol
                errorMessage.append("\n - ").append(context.getResources().getString(R.string.upload_image_problem_blurry));
                                                                                             ^
  symbol:   variable upload_image_problem_blurry
  location: class string

[neslihanturan]

Thanks @domdomegg , I raised a related PR. #2143