[Bug 4905] Fix: Add the encoding for all mb_* functions

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/oelib/trunk@82931 735d13b6-9817-0410-8766-e36946ffe9aa
[Bug 4906] Fix: Test crash in Tx_Oelib_TemplateHelperTest in PHP 5.3

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/oelib/trunk@82934 735d13b6-9817-0410-8766-e36946ffe9aa
Bump the version number to 0.7.72.

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/oelib/trunk@82935 735d13b6-9817-0410-8766-e36946ffe9aa