renamed and moved some Special:Styleguide files
WIP: created component's documentation files and moved there messages keys' names; created i18n files for components as well; TODO: make the messages really load while rebuilding
fixed typos and added combined i18n file to SpecialStylegiude setup file
added the TODO message in one more place, added the ui components messages
refactored StyleguideComponents class; added there one more caching layer and removed some methods; added file path to the exception message in \Wikia\UI\Factory
DAR-1243, create doc JSON file for button component
DAR-1243, add messages for button documentation
removed placeholders
changes after linting
more refactoring after introducing changes in component's documentation
removed example file because it's not needed anymore after introducing documentation file
made getComopnentsDir() static method to re-use it in hooks
dynamically loaded components' messages
fixed integration test after changes in \Wikia\UI\Factory
"fixed" integration tests
removed depreceted method; after php-linting
removed unused property; after php-linting
updated documentation
removed unused messages file
DAR-1243 add a hook to include components' message files