[TASK] Remove empty t3lib_exec, t3lib_extmgm, t3lib_extobjbase
[!!!][TASK] Remove t3lib_formmail

This class should have been deprecated for 6.0 but was forgotten.
The formmail API is heavily old school and hard coded. It is of
no use in younger projects for a long time.
The class is removed now without substitution and the according
helpermethods in TSFE deprecated, checkDataSubmission() even removed
directly because it can not be used externally.
Revert "[TASK] Remove empty t3lib_cli and t3lib_db and mentions"

This reverts commit b4551cb3 to see if it makes travis happy again.
Revert "[TASK] Release typo3/ajax.php from early t3lib_div usage"

This reverts commit f608ed0 to see if it makes travis happy again.
[TASK] Add TODO note for travis memory settings
[BUGFIX] Fix wrong class call causing a Fatal Error
[BUGFIX] Require_once to old t3lib_div.php causes Fatal Error
[BUGFIX] Require_once to old t3lib_div.php causes Fatal Error

Addition: fixed the path
Merge pull request #1 from maddy2101/bugfix

[BUGFIX] Fix wrong class call causing a Fatal Error