[TASK] Reformat code according to coding guidelines
[TASK] Replace t3lib_div with \TYPO3\CMS\Core\Utility\GeneralUtility
[TASK] Replace t3lib_iconWorks with \TYPO3\CMS\Backend\Utility\IconUtility
[TASK] Replace t3lib_BEfunc with \TYPO3\CMS\Backend\Utility\BackendUtility
[TASK] Replace t3lib_extMgm with \TYPO3\CMS\Core\Utility\ExtensionManagementUtility
[TASK] Replace t3lib_SpriteManager with \TYPO3\CMS\Backend\Sprite\SpriteManager
[TASK] Replace t3lib_utility_VersionNumber with \TYPO3\CMS\Core\Utility\VersionNumberUtility
[TASK] Replace t3lib_FlashMessage with \TYPO3\CMS\Core\Messaging\FlashMessage
[TASK] Replace t3lib_utility_Math with \TYPO3\CMS\Core\Utility\MathUtility
[TASK] Replace t3lib_utility_Debug with \TYPO3\CMS\Core\Utility\DebugUtility
[TASK] Replace t3lib_FlashMessageQueue with \TYPO3\CMS\Core\Messaging\FlashMessageQueue
[TASK] Replace several occurrences of not namespaces classes
[TASK] Remove closing php tags
[TASK] Followup: Remove closing php tags
[TASK] Copy mod1_default.css to mod1_6.2.css
[BUGFIX] Add missing float for adjusting content element titles
[BUGFIX] Disable call of not existing recordList::showSysNotesForPage
[TASK] Remove deprecated calls to \TYPO3\CMS\Core\Utility\GeneralUtility::loadTCA()
[TASK] Replace deprecated usage of FlashMessages
[TASK] Replace deprecated calls to $GLOBALS['LANG']->JScharCode()