Added labels, warning message if external url exist, autocomplete http, changed showitem for internal file and external url, check if redirect has a source url and cleanup code

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/roq_redirect/trunk@84704 735d13b6-9817-0410-8766-e36946ffe9aa
Changed version from 0.0.0 to 1.0.0

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/roq_redirect/trunk@84707 735d13b6-9817-0410-8766-e36946ffe9aa