[TASK] Update jQuery to 2.x

Change-Id: Ib39b7e52b794ec375027a3ac1315c6e84e345f93
Resolves: #68917
Releases: master
Reviewed-on: http://review.typo3.org/42494


Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>