removed unused message and added new one and its qqq
pulling whole blog post instead of its section, removed methods we won't use anymore, implemented methods which retrives the section from whole content
removed globals, fixed pulling css updates for different languages than EN
clean up: moved logic responsible for retrieving CSS Update section to one method
fixed tests: added mocked global variable
added unit tests for pulling CSS Updates section, added methods which pulls the CSS updates section and cleaned up code a little bit
small change in phpdoc after linting
DAR-1182: Fixed pulling CSS Updates
DAR-1182: Pass language parameter to CategorySelect
DAR-1182: Change way for passing lang in CategorySelect
DAR-1182 added unit test for ordering solution
autoformating by PhpStorm
removed duplicated message
clean up, changes after linting
Merge branch 'DAR-1182' into DAR-1064
fix for errors when there is no text in the CSS section
manually merged dev resolving conflicts in SpecialCssModelTest.class.php and in SpecialCss.i18n.php
used CategoryHelper instead of non-existing CategorySelect and added caching layer for SpecialCssModel::getCssUpdateHeadline()
used array_map instead of loop with direct method call
let's check if the data is there (just-in-case)