Skipping CUBRID on HHVM
Updated custom debug panel example
code style. operator IF
Merge pull request #2578 from schmunk42/feature/update-composer-keywords

replaced keyword "yii" with "yii2" in composer.json files (fixes #2557)
updated error code.
code style. FOREACH
code style. FOR
code style. WHILE
Fixed advanced application to use POST for logout
returned back formatting language files
remove previous attachments if any
Changelog
Finished HATEOAS  support.
Renamed `User::loginByToken()` to `loginByAccessToken()`.
enchansment of db message source
Update MessageController.php

fix code style
Fixed phpdoc class reference in Theme
Code style
Fixing #2556: finished theming docs, emphasized on the fact that themes are non-redistributable and application-specific
return data from module scope variable