[TASK] Update copyright year to 2013

Resolves: #46085
Releases: 6.1, 6.0, 4.7, 4.6, 4.5
Change-Id: I970078281d129be8ffef0bef128b23354ce59ddd
Reviewed-on: https://review.typo3.org/18784
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn
[TASK] Update copyright year to 2013

Resolves: #46085
Releases: 6.1, 6.0, 4.7, 4.6, 4.5
Change-Id: Icc8cf3267d4e8ab4776ff246aa92a7ae634987b6
Reviewed-on: https://review.typo3.org/18788
Reviewed-by: Ernesto Baschny
Tested-by: Ernesto Baschny
[BUGFIX] Clearing cache from toolbar fails in IE8

Fix for regression in #45595 that was introduced with #36364
IE8 does not pass the click event to the handler function and thus
raises a JavaScript error. The event can be fetched from the window
object in this case.

Fixes: #45595
Releases: 6.1, 6.0, 4.7, 4.6, 4.5

Change-Id: I9ccd5c8ae660a34e404122d9dd1c816909688b3e
Reviewed-on: https://review.typo3.org/18797
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn
Merge remote-tracking branch 'forge/TYPO3_4-6' into TYPO3_4-6