[TASK] Update PEAR packages

Update the PEAR packages in the contrib folder to the current versions.
That is from 2.1.1 to 2.2.1

Mainly this includes bugfixes and some minor features like
"100 Continue" support.

Relevant changelogs:
http://pear.php.net/package/HTTP_Request2/download/2.2.0
http://pear.php.net/package/HTTP_Request2/download/2.2.1

Resolves: #62672
Releases: master
Change-Id: I20efe703a8db75e2ae579693639b4c3afb7e0f77
Reviewed-on: http://review.typo3.org/33770
Reviewed-by: Alexander Opitz <opitz.alexander@googlemail.com>
Reviewed-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Tested-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>